diff --git a/app/controllers/profile_admin_controller.rb b/app/controllers/profile_admin_controller.rb
index 88ffaf4..e08d798 100644
--- a/app/controllers/profile_admin_controller.rb
+++ b/app/controllers/profile_admin_controller.rb
@@ -1,2 +1,21 @@
 class ProfileAdminController < ApplicationController
+
+  # declares that the controller needs an specific type of profile. Example:
+  #
+  #  class PersonDetailControlles < ProfileAdminController
+  #    requires_profile_class Person
+  #  end
+  #
+  # The above controller will reject every request to it unless the current
+  # profile (as indicated by the first URL component) is of class Person (or of
+  # a subclass of Person) 
+  def self.requires_profile_class(some_class)
+    before_filter do |controller|
+      unless controller.profile.kind_of?(some_class)
+        controller.instance_variable_set('@message',  _("This action is not available for \"%s\".") % controller.profile.name)
+        controller.render :file => 'app/views/shared/access_denied.rhtml' , :layout => true, :status => 403
+      end
+    end
+  end
+
 end
diff --git a/test/functional/profile_admin_controller_test.rb b/test/functional/profile_admin_controller_test.rb
index 51a4bd8..a1bce3f 100644
--- a/test/functional/profile_admin_controller_test.rb
+++ b/test/functional/profile_admin_controller_test.rb
@@ -4,15 +4,36 @@ require 'profile_admin_controller'
 # Re-raise errors caught by the controller.
 class ProfileAdminController; def rescue_action(e) raise e end; end
 
+class OnlyForPersonTestController < ProfileAdminController
+  requires_profile_class Person
+  def index
+    render :text => '<div>something</div>'
+  end
+end
+
 class ProfileAdminControllerTest < Test::Unit::TestCase
+
   def setup
     @controller = ProfileAdminController.new
     @request    = ActionController::TestRequest.new
     @response   = ActionController::TestResponse.new
   end
 
-  # Replace this with your real tests.
-  def test_truth
-    assert true
+  def test_should_allow_person
+    @controller = OnlyForPersonTestController.new
+    person = Person.new(:name => 'Random Joe')
+    @controller.stubs(:profile).returns(person)
+
+    get :index
+    assert_response :success
+  end
+
+  def test_should_not_allow_bare_profile
+    @controller = OnlyForPersonTestController.new
+    org = Organization.new(:name => 'Hacking Institute')
+    @controller.stubs(:profile).returns(org)
+
+    get :index
+    assert_response 403 # forbidden
   end
 end
--
libgit2 0.21.2