diff --git a/patrole_tempest_plugin/rbac_exceptions.py b/patrole_tempest_plugin/rbac_exceptions.py
index 967342b..aa3135e 100644
--- a/patrole_tempest_plugin/rbac_exceptions.py
+++ b/patrole_tempest_plugin/rbac_exceptions.py
@@ -34,3 +34,7 @@
 
 class RbacParsingException (exceptions.TempestException):
     message = "Attempted to test an invalid policy file or action"
+
+
+class RbacInvalidErrorCode (exceptions.TempestException):
+    message = "Unsupported error code passed in test"
diff --git a/patrole_tempest_plugin/rbac_rule_validation.py b/patrole_tempest_plugin/rbac_rule_validation.py
index a6490e7..33ee666 100644
--- a/patrole_tempest_plugin/rbac_rule_validation.py
+++ b/patrole_tempest_plugin/rbac_rule_validation.py
@@ -26,7 +26,7 @@
 LOG = logging.getLogger(__name__)
 
 
-def action(service, rule):
+def action(service, rule, expected_error_code=403):
     def decorator(func):
         def wrapper(*args, **kwargs):
             try:
@@ -43,6 +43,8 @@
 
             authority = rbac_auth.RbacAuthority(tenant_id, user_id, service)
             allowed = authority.get_permission(rule, CONF.rbac.rbac_test_role)
+            expected_exception, irregular_msg = _get_exception_type(
+                expected_error_code)
 
             try:
                 func(*args)
@@ -52,7 +54,7 @@
                 raise exceptions.NotFound(
                     "%s RbacInvalidService was: %s" %
                     (msg, e))
-            except exceptions.Forbidden as e:
+            except expected_exception as e:
                 if allowed:
                     msg = ("Role %s was not allowed to perform %s." %
                            (CONF.rbac.rbac_test_role, rule))
@@ -60,6 +62,8 @@
                     raise exceptions.Forbidden(
                         "%s exception was: %s" %
                         (msg, e))
+                if irregular_msg:
+                    LOG.warning(irregular_msg.format(rule, service))
             except rbac_exceptions.RbacActionFailed as e:
                 if allowed:
                     msg = ("Role %s was not allowed to perform %s." %
@@ -80,3 +84,23 @@
                                                   switchToRbacRole=False)
         return wrapper
     return decorator
+
+
+def _get_exception_type(expected_error_code):
+    expected_exception = None
+    irregular_msg = None
+    supported_error_codes = [403, 404]
+    if expected_error_code == 403:
+        expected_exception = exceptions.Forbidden
+    elif expected_error_code == 404:
+        expected_exception = exceptions.NotFound
+        irregular_msg = ("NotFound exception was caught for policy action "
+                         "{0}. The service {1} throws a 404 instead of a 403, "
+                         "which is irregular.")
+    else:
+        msg = ("Please pass an expected error code. Currently "
+               "supported codes: {0}".format(str(supported_error_codes)))
+        LOG.error(msg)
+        raise rbac_exceptions.RbacInvalidErrorCode()
+
+    return expected_exception, irregular_msg
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
index bbd5a79..7d99d55 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
@@ -16,9 +16,7 @@
 from oslo_log import log as logging
 from tempest import config
 from tempest.lib import decorators
-from tempest.lib import exceptions
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base as base
 
@@ -79,7 +77,8 @@
                                                      self.alt_tenant_id)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_member")
+                                 rule="get_member",
+                                 expected_error_code=404)
     @decorators.idempotent_id('c01fd308-6484-11e6-881e-080027d0d606')
     def test_show_image_member(self):
 
@@ -87,24 +86,16 @@
 
         RBAC test for the glance get_member policy
         """
-        try:
-            image_id = self.create_image()['id']
-            self.image_member_client.create_image_member(
-                image_id,
-                member=self.alt_tenant_id)
+        image_id = self.create_image()['id']
+        self.image_member_client.create_image_member(
+            image_id,
+            member=self.alt_tenant_id)
 
-            # Toggle role and get image member
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.image_member_client.show_image_member(
-                image_id,
-                self.alt_tenant_id)
-        except exceptions.NotFound as e:
-            '''If the role doesn't have access to an image, a 404 exception is
-            thrown when the roles tries to show an image member'''
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the image and tries to show "
-                     "image members")
-            raise rbac_exceptions.RbacActionFailed(e)
+        # Toggle role and get image member
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.image_member_client.show_image_member(
+            image_id,
+            self.alt_tenant_id)
 
     @rbac_rule_validation.action(service="glance",
                                  rule="modify_member")
diff --git a/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py b/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
index d186f38..bd562ec 100644
--- a/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
@@ -19,9 +19,7 @@
 from tempest import config
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -108,7 +106,9 @@
         self.floating_ips_client.update_floatingip(
             floating_ip['id'], port_id=None)
 
-    @rbac_rule_validation.action(service="neutron", rule="get_floatingip")
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="get_floatingip",
+                                 expected_error_code=404)
     @decorators.idempotent_id('f8846fd0-c976-48fe-a148-105303931b32')
     def test_show_floating_ip(self):
         """Show floating IP.
@@ -117,18 +117,12 @@
         """
         floating_ip = self._create_floatingip()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-
-        try:
-            # Show floating IP
-            self.floating_ips_client.show_floatingip(floating_ip['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        # Show floating IP
+        self.floating_ips_client.show_floatingip(floating_ip['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_floatingip")
+                                 rule="delete_floatingip",
+                                 expected_error_code=404)
     @decorators.idempotent_id('2611b068-30d4-4241-a78f-1b801a14db7e')
     def test_delete_floating_ip(self):
         """Delete floating IP.
@@ -137,13 +131,5 @@
         """
         floating_ip = self._create_floatingip()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-
-        try:
-            # Delete the floating IP
-            self.floating_ips_client.delete_floatingip(floating_ip['id'])
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        # Delete the floating IP
+        self.floating_ips_client.delete_floatingip(floating_ip['id'])
diff --git a/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py b/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
index 21c2f96..10a20f4 100644
--- a/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
@@ -18,10 +18,8 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 from tempest import test
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -81,7 +79,8 @@
         self._create_metering_label_rule(self.label)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_metering_label_rule")
+                                 rule="get_metering_label_rule",
+                                 expected_error_code=404)
     @decorators.idempotent_id('e21b40c3-d44d-412f-84ea-836ca8603bcb')
     def test_show_metering_label_rule(self):
         """Show metering label rule.
@@ -90,17 +89,12 @@
         """
         label_rule = self._create_metering_label_rule(self.label)
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.metering_label_rules_client.show_metering_label_rule(
-                label_rule['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.metering_label_rules_client.show_metering_label_rule(
+            label_rule['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_metering_label_rule")
+                                 rule="delete_metering_label_rule",
+                                 expected_error_code=404)
     @decorators.idempotent_id('e3adc88c-05c0-43a7-8e32-63947ae4890e')
     def test_delete_metering_label_rule(self):
         """Delete metering label rule.
@@ -109,11 +103,5 @@
         """
         label_rule = self._create_metering_label_rule(self.label)
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.metering_label_rules_client.delete_metering_label_rule(
-                label_rule['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.metering_label_rules_client.delete_metering_label_rule(
+            label_rule['id'])
diff --git a/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py b/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
index 09e298c..eb17df4 100644
--- a/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
@@ -17,10 +17,8 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 from tempest import test
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -63,7 +61,8 @@
         self._create_metering_label()
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_metering_label")
+                                 rule="get_metering_label",
+                                 expected_error_code=404)
     @decorators.idempotent_id('c57f6636-c702-4755-8eac-5e73bc1f7d14')
     def test_show_metering_label(self):
         """Show metering label.
@@ -72,16 +71,11 @@
         """
         label = self._create_metering_label()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.metering_labels_client.show_metering_label(label['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.metering_labels_client.show_metering_label(label['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_metering_label")
+                                 rule="delete_metering_label",
+                                 expected_error_code=404)
     @decorators.idempotent_id('1621ccfe-2e3f-4d16-98aa-b620f9d00404')
     def test_delete_metering_label(self):
         """Delete metering label.
@@ -90,10 +84,4 @@
         """
         label = self._create_metering_label()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.metering_labels_client.delete_metering_label(label['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.metering_labels_client.delete_metering_label(label['id'])
diff --git a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
index 518c71b..093459e 100644
--- a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
@@ -21,9 +21,7 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -143,61 +141,43 @@
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
         self._create_port(**post_body)
 
-    @rbac_rule_validation.action(service="neutron", rule="get_port")
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="get_port",
+                                 expected_error_code=404)
     @decorators.idempotent_id('a9d41cb8-78a2-4b97-985c-44e4064416f4')
     def test_show_port(self):
-
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-
-            self.ports_client.show_port(self.admin_port['id'])
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.show_port(self.admin_port['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_port:binding:vif_type")
+                                 rule="get_port:binding:vif_type",
+                                 expected_error_code=404)
     @decorators.idempotent_id('125aff0b-8fed-4f8e-8410-338616594b06')
     def test_show_port_binding_vif_type(self):
 
         # Verify specific fields of a port
         fields = ['binding:vif_type']
 
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.ports_client.show_port(self.admin_port['id'],
-                                        fields=fields)
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.show_port(self.admin_port['id'],
+                                    fields=fields)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_port:binding:vif_details")
+                                 rule="get_port:binding:vif_details",
+                                 expected_error_code=404)
     @decorators.idempotent_id('e42bfd77-fcce-45ee-9728-3424300f0d6f')
     def test_show_port_binding_vif_details(self):
 
         # Verify specific fields of a port
         fields = ['binding:vif_details']
 
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.ports_client.show_port(self.admin_port['id'],
-                                        fields=fields)
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.show_port(self.admin_port['id'],
+                                    fields=fields)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_port:binding:host_id")
+                                 rule="get_port:binding:host_id",
+                                 expected_error_code=404)
     @decorators.idempotent_id('8e61bcdc-6f81-443c-833e-44410266551e')
     def test_show_port_binding_host_id(self):
 
@@ -207,19 +187,13 @@
                      'binding:host_id': data_utils.rand_name('host-id')}
         port = self._create_port(**post_body)
 
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.ports_client.show_port(port['id'],
-                                        fields=fields)
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.show_port(port['id'],
+                                    fields=fields)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_port:binding:profile")
+                                 rule="get_port:binding:profile",
+                                 expected_error_code=404)
     @decorators.idempotent_id('d497cea9-c4ad-42e0-acc9-8d257d6b01fc')
     def test_show_port_binding_profile(self):
 
@@ -230,16 +204,9 @@
                      'binding:profile': binding_profile}
         port = self._create_port(**post_body)
 
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.ports_client.show_port(port['id'],
-                                        fields=fields)
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.show_port(port['id'],
+                                    fields=fields)
 
     @rbac_rule_validation.action(service="neutron",
                                  rule="update_port")
@@ -337,17 +304,11 @@
                                       allowed_address_pairs=address_pairs)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_port")
+                                 rule="delete_port",
+                                 expected_error_code=404)
     @decorators.idempotent_id('1cf8e582-bc09-46cb-b32a-82bf991ad56f')
     def test_delete_port(self):
 
-        try:
-            port = self._create_port(network_id=self.admin_network['id'])
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.ports_client.delete_port(port['id'])
-
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        port = self._create_port(network_id=self.admin_network['id'])
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.ports_client.delete_port(port['id'])
diff --git a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
index e66da21..69aa32a 100644
--- a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
@@ -21,10 +21,8 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 from tempest import test
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -112,7 +110,9 @@
         self.addCleanup(self.routers_client.delete_router,
                         router['router']['id'])
 
-    @rbac_rule_validation.action(service="neutron", rule="get_router")
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="get_router",
+                                 expected_error_code=404)
     @decorators.idempotent_id('bfbdbcff-f115-4d3e-8cd5-6ada33fd0e21')
     def test_show_router(self):
         """Get Router
@@ -120,13 +120,7 @@
         RBAC test for the neutron get_router policy
         """
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.routers_client.show_router(self.admin_router['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.routers_client.show_router(self.admin_router['id'])
 
     @rbac_rule_validation.action(
         service="neutron", rule="update_router")
@@ -220,7 +214,8 @@
             external_gateway_info=None)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_router")
+                                 rule="delete_router",
+                                 expected_error_code=404)
     @decorators.idempotent_id('c0634dd5-0467-48f7-a4ae-1014d8edb2a7')
     def test_delete_router(self):
         """Delete Router
@@ -229,16 +224,11 @@
         """
         router = self.create_router()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.routers_client.delete_router(router['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.routers_client.delete_router(router['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="add_router_interface")
+                                 rule="add_router_interface",
+                                 expected_error_code=404)
     @decorators.idempotent_id('a0627778-d68d-4913-881b-e345360cca19')
     def test_add_router_interfaces(self):
         """Add Router Interface
@@ -250,22 +240,17 @@
         router = self.create_router()
 
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.routers_client.add_router_interface(
-                router['id'], subnet_id=subnet['id'])
-            self.addCleanup(
-                test_utils.call_and_ignore_notfound_exc,
-                self.routers_client.remove_router_interface,
-                router['id'],
-                subnet_id=subnet['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.routers_client.add_router_interface(
+            router['id'], subnet_id=subnet['id'])
+        self.addCleanup(
+            test_utils.call_and_ignore_notfound_exc,
+            self.routers_client.remove_router_interface,
+            router['id'],
+            subnet_id=subnet['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="remove_router_interface")
+                                 rule="remove_router_interface",
+                                 expected_error_code=404)
     @decorators.idempotent_id('ff2593a4-2bff-4c27-97d3-dd3702b27dfb')
     def test_remove_router_interfaces(self):
         """Remove Router Interface
@@ -285,12 +270,6 @@
                         subnet_id=subnet['id'])
 
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.routers_client.remove_router_interface(
-                router['id'],
-                subnet_id=subnet['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.routers_client.remove_router_interface(
+            router['id'],
+            subnet_id=subnet['id'])
diff --git a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
index cf76836..289c669 100644
--- a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
@@ -18,9 +18,7 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -80,53 +78,40 @@
         self._create_security_group()
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_security_group")
+                                 rule="get_security_group",
+                                 expected_error_code=404)
     @decorators.idempotent_id('56335e77-aef2-4b54-86c7-7f772034b585')
     def test_show_security_groups(self):
 
-        try:
-            self.rbac_utils.switch_role(self, switchToRbacRole=True)
-            self.security_groups_client.show_security_group(
-                self.secgroup['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.rbac_utils.switch_role(self, switchToRbacRole=True)
+        self.security_groups_client.show_security_group(
+            self.secgroup['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_security_group")
+                                 rule="delete_security_group",
+                                 expected_error_code=404)
     @decorators.idempotent_id('0b1330fd-dd28-40f3-ad73-966052e4b3de')
     def test_delete_security_group(self):
 
         # Create a security group
         secgroup_id = self._create_security_group()['id']
+
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.security_groups_client.delete_security_group(secgroup_id)
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.security_groups_client.delete_security_group(secgroup_id)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="update_security_group")
+                                 rule="update_security_group",
+                                 expected_error_code=404)
     @decorators.idempotent_id('56c5e4dc-f8aa-11e6-bc64-92361f002671')
     def test_update_security_group(self):
 
         # Create a security group
         secgroup_id = self._create_security_group()['id']
+
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.security_groups_client.update_security_group(
-                secgroup_id,
-                description="test description")
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.security_groups_client.update_security_group(
+            secgroup_id,
+            description="test description")
 
     @rbac_rule_validation.action(service="neutron",
                                  rule="get_security_groups")
@@ -145,38 +130,26 @@
         self._create_security_group_rule()
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_security_group_rule")
+                                 rule="delete_security_group_rule",
+                                 expected_error_code=404)
     @decorators.idempotent_id('2262539e-b7d9-438c-acf9-a5ce0613be28')
     def test_delete_security_group_rule(self):
 
         sec_group_rule = self._create_security_group_rule()
-
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.security_group_rules_client.delete_security_group_rule(
-                sec_group_rule['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.security_group_rules_client.delete_security_group_rule(
+            sec_group_rule['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_security_group_rule")
+                                 rule="get_security_group_rule",
+                                 expected_error_code=404)
     @decorators.idempotent_id('84b4038c-261e-4a94-90d5-c885739ab0d5')
     def test_show_security_group_rule(self):
 
         sec_group_rule = self._create_security_group_rule()
-
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.security_group_rules_client.show_security_group_rule(
-                sec_group_rule['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.security_group_rules_client.show_security_group_rule(
+            sec_group_rule['id'])
 
     @rbac_rule_validation.action(service="neutron",
                                  rule="get_security_group_rules")
diff --git a/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py b/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
index 35ad335..3667212 100644
--- a/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
@@ -18,10 +18,8 @@
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions
 from tempest import test
 
-from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.network import rbac_base as base
 
@@ -79,7 +77,8 @@
         self._create_subnetpool(shared=True)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_subnetpool")
+                                 rule="get_subnetpool",
+                                 expected_error_code=404)
     @decorators.idempotent_id('4f5aee26-0507-4b6d-b44c-3128a25094d2')
     def test_show_subnetpool(self):
         """Show subnetpool.
@@ -88,13 +87,7 @@
         """
         subnetpool = self._create_subnetpool()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.subnetpools_client.show_subnetpool(subnetpool['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.subnetpools_client.show_subnetpool(subnetpool['id'])
 
     @rbac_rule_validation.action(service="neutron",
                                  rule="update_subnetpool")
@@ -110,7 +103,8 @@
                                                   min_prefixlen=24)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_subnetpool")
+                                 rule="delete_subnetpool",
+                                 expected_error_code=404)
     @decorators.idempotent_id('50f5944e-43e5-457b-ab50-fb48a73f0d3e')
     def test_delete_subnetpool(self):
         """Delete subnetpool.
@@ -119,10 +113,4 @@
         """
         subnetpool = self._create_subnetpool()
         self.rbac_utils.switch_role(self, switchToRbacRole=True)
-        try:
-            self.subnetpools_client.delete_subnetpool(subnetpool['id'])
-        except exceptions.NotFound as e:
-            LOG.info("NotFound exception caught. Exception is thrown when "
-                     "role doesn't have access to the endpoint."
-                     "This is irregular and should be fixed.")
-            raise rbac_exceptions.RbacActionFailed(e)
+        self.subnetpools_client.delete_subnetpool(subnetpool['id'])
diff --git a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
index eeb06cc..9fa0d98 100644
--- a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
+++ b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
@@ -19,10 +19,13 @@
 from patrole_tempest_plugin import rbac_exceptions
 from patrole_tempest_plugin import rbac_rule_validation as rbac_rv
 
+from tempest import config
 from tempest.lib import exceptions
 from tempest import test
 from tempest.tests import base
 
+CONF = config.CONF
+
 
 class RBACRuleValidationTest(base.TestCase):
 
@@ -36,6 +39,10 @@
         self.mock_args.auth_provider.credentials.user_id = \
             mock.sentinel.user_id
 
+        CONF.set_override('rbac_test_role', 'Member', group='rbac',
+                          enforce_type=True)
+        self.addCleanup(CONF.clear_override, 'rbac_test_role', group='rbac')
+
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
     def test_RBAC_rv_happy_path(self, mock_auth):
         decorator = rbac_rv.action("", "")
@@ -44,27 +51,58 @@
         wrapper((self.mock_args))
         self.assertTrue(mock_function.called)
 
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
-    def test_RBAC_rv_forbidden(self, mock_auth):
-        decorator = rbac_rv.action("", "")
+    def test_RBAC_rv_forbidden(self, mock_auth, mock_log):
+        decorator = rbac_rv.action(mock.sentinel.service, mock.sentinel.action)
         mock_function = mock.Mock()
         mock_function.side_effect = exceptions.Forbidden
         wrapper = decorator(mock_function)
 
-        self.assertRaises(exceptions.Forbidden, wrapper, self.mock_args)
+        e = self.assertRaises(exceptions.Forbidden, wrapper, self.mock_args)
+        self.assertIn(
+            "Role Member was not allowed to perform sentinel.action.",
+            e.__str__())
+        mock_log.error.assert_called_once_with("Role Member was not allowed to"
+                                               " perform sentinel.action.")
 
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
-    def test_RBAC_rv_rbac_action_failed(self, mock_auth):
-        decorator = rbac_rv.action("", "")
+    def test_expect_not_found_but_raises_forbidden(self, mock_auth, mock_log):
+        decorator = rbac_rv.action(mock.sentinel.service,
+                                   mock.sentinel.action,
+                                   404)
+        mock_function = mock.Mock()
+        mock_function.side_effect = exceptions.NotFound
+        wrapper = decorator(mock_function)
+
+        e = self.assertRaises(exceptions.Forbidden, wrapper, self.mock_args)
+        self.assertIn(
+            "Role Member was not allowed to perform sentinel.action.",
+            e.__str__())
+        mock_log.error.assert_called_once_with("Role Member was not allowed to"
+                                               " perform sentinel.action.")
+
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
+    def test_RBAC_rv_rbac_action_failed(self, mock_auth, mock_log):
+        decorator = rbac_rv.action(mock.sentinel.service, mock.sentinel.action)
         mock_function = mock.Mock()
         mock_function.side_effect = rbac_exceptions.RbacActionFailed
-
         wrapper = decorator(mock_function)
-        self.assertRaises(exceptions.Forbidden, wrapper, self.mock_args)
 
+        e = self.assertRaises(exceptions.Forbidden, wrapper, self.mock_args)
+        self.assertIn(
+            "Role Member was not allowed to perform sentinel.action.",
+            e.__str__())
+
+        mock_log.error.assert_called_once_with("Role Member was not allowed to"
+                                               " perform sentinel.action.")
+
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
-    def test_RBAC_rv_not_allowed(self, mock_auth):
-        decorator = rbac_rv.action("", "")
+    def test_RBAC_rv_not_allowed(self, mock_auth, mock_log):
+        decorator = rbac_rv.action(mock.sentinel.service, mock.sentinel.action)
 
         mock_function = mock.Mock()
         wrapper = decorator(mock_function)
@@ -73,8 +111,13 @@
         mock_permission.get_permission.return_value = False
         mock_auth.return_value = mock_permission
 
-        self.assertRaises(rbac_exceptions.RbacOverPermission, wrapper,
-                          self.mock_args)
+        e = self.assertRaises(rbac_exceptions.RbacOverPermission, wrapper,
+                              self.mock_args)
+        self.assertIn(("OverPermission: Role Member was allowed to perform "
+                      "sentinel.action"), e.__str__())
+
+        mock_log.error.assert_called_once_with(
+            "Role Member was allowed to perform sentinel.action")
 
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
     def test_RBAC_rv_forbidden_not_allowed(self, mock_auth):
@@ -90,6 +133,29 @@
 
         self.assertIsNone(wrapper(self.mock_args))
 
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
+    def test_expect_not_found_and_not_allowed(self, mock_auth, mock_log):
+        decorator = rbac_rv.action(mock.sentinel.service,
+                                   mock.sentinel.action,
+                                   404)
+
+        mock_function = mock.Mock()
+        mock_function.side_effect = exceptions.NotFound
+        wrapper = decorator(mock_function)
+
+        mock_permission = mock.Mock()
+        mock_permission.get_permission.return_value = False
+        mock_auth.return_value = mock_permission
+
+        self.assertIsNone(wrapper(self.mock_args))
+
+        mock_log.warning.assert_called_once_with(
+            'NotFound exception was caught for policy action sentinel.action. '
+            'The service sentinel.service throws a 404 instead of a 403, '
+            'which is irregular.')
+        mock_log.error.assert_not_called()
+
     @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
     def test_RBAC_rv_rbac_action_failed_not_allowed(self, mock_auth):
         decorator = rbac_rv.action("", "")
@@ -122,3 +188,37 @@
         mock_rbac_policy_parser.RbacPolicyParser.assert_called_once_with(
             mock.sentinel.tenant_id, mock.sentinel.user_id,
             mock.sentinel.service)
+
+    @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
+    def test_get_exception_type_404(self, mock_auth):
+        expected_exception = exceptions.NotFound
+        expected_irregular_msg = ("NotFound exception was caught for policy "
+                                  "action {0}. The service {1} throws a 404 "
+                                  "instead of a 403, which is irregular.")
+
+        actual_exception, actual_irregular_msg = \
+            rbac_rv._get_exception_type(404)
+
+        self.assertEqual(expected_exception, actual_exception)
+        self.assertEqual(expected_irregular_msg, actual_irregular_msg)
+
+    @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
+    def test_get_exception_type_403(self, mock_auth):
+        expected_exception = exceptions.Forbidden
+        expected_irregular_msg = None
+
+        actual_exception, actual_irregular_msg = \
+            rbac_rv._get_exception_type(403)
+
+        self.assertEqual(expected_exception, actual_exception)
+        self.assertEqual(expected_irregular_msg, actual_irregular_msg)
+
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch('patrole_tempest_plugin.rbac_auth.RbacAuthority')
+    def test_exception_thrown_when_type_is_not_int(self, mock_auth, mock_log):
+        self.assertRaises(rbac_exceptions.RbacInvalidErrorCode,
+                          rbac_rv._get_exception_type, "403")
+
+        mock_log.error.assert_called_once_with("Please pass an expected error "
+                                               "code. Currently supported "
+                                               "codes: [403, 404]")