diff --git a/app/controllers/admin/comments_controller.rb b/app/controllers/admin/comments_controller.rb
index aa8423fc..4fa39d32 100644
--- a/app/controllers/admin/comments_controller.rb
+++ b/app/controllers/admin/comments_controller.rb
@@ -8,6 +8,8 @@ module Admin
       @posted_comments = grouped_comments(accessible_ordered_comments.find_comments_by_user(current_user))
     end
 
+    private
+
     def accessible_ordered_comments
       Comment.accessible_by(current_ability).joins('INNER JOIN events ON commentable_id = events.id').order('events.title', 'comments.created_at DESC')
     end
diff --git a/spec/controllers/admin/comments_controller_spec.rb b/spec/controllers/admin/comments_controller_spec.rb
index f202c423..b8140640 100644
--- a/spec/controllers/admin/comments_controller_spec.rb
+++ b/spec/controllers/admin/comments_controller_spec.rb
@@ -1,32 +1,81 @@
 require 'spec_helper'
 
-describe Admin::CommentsController do
+describe Admin::CommentsController, type: :controller do
 
-# some settings to be done before like creating objects used by tests
-  describe 'GET #index' do
-    context 'all comments' do
-      it 'populates a hash with conference, event, and comment objects'
-      it 'renders the :index template'
-    end
+  context 'not logged in user' do
+    describe 'GET #index' do
+      it 'renders the :index template' do
+        conference = create(:conference)
+        first_user = create(:user)
+        organizer_role = create(:role, name: 'organizer', resource: conference)
+        organizer = create(:user, role_ids: organizer_role.id)
+        event = create(:event, conference: conference)
+        comment = create(:comment, commentable_type: 'Event', commentable_id: event.id)
 
-    context 'unread_comments' do
-      it 'populates a hash with conference, event, and comment objects created since last login of current_user'
-      it 'renders the :index template'
-    end
-
-    context 'posted_comments' do
-      it 'populates a hash with conference, event, and comments posted by current_user'
-      it 'renders the :index template'
+        get :index
+        expect(response).to redirect_to(user_session_path)
+      end
     end
   end
 
-  describe 'accessible_ordered_comments' do
-    it 'returns comments'
-    it 'sorts comments by created_at and event title'
+  context 'logged in as admin, organizer or cfp' do
+    describe 'GET #index' do
+      it 'populates a hash with comments' do
+        conference = create(:conference)
+        first_user = create(:user)
+        organizer_role = create(:role, name: 'organizer', resource: conference)
+        organizer = create(:user, role_ids: organizer_role.id)
+        event = create(:event, conference: conference)
+        comment = create(:comment, commentable_type: 'Event', commentable_id: event.id)
+        sign_in(organizer)
+
+        get :index
+        expect(assigns(:comments)).to be_a(Hash)
+        # assigns(:comments).first returns an array of first pair key-value from hash.
+        # Calling again 'first' returns the key, meaning the Conference object.
+        expect(assigns(:comments).first.first.title).to eq(comment.commentable.conference.title)
+      end
+      it 'has status 200: OK' do
+        conference = create(:conference)
+        first_user = create(:user)
+        organizer_role = create(:role, name: 'organizer', resource: conference)
+        organizer = create(:user, role_ids: organizer_role.id)
+        event = create(:event, conference: conference)
+        comment = create(:comment, commentable_type: 'Event', commentable_id: event.id)
+        sign_in(organizer)
+
+        get :index
+        expect(response).to have_http_status(:ok)
+      end
+      it 'renders the :index template' do
+        conference = create(:conference)
+        first_user = create(:user)
+        organizer_role = create(:role, name: 'organizer', resource: conference)
+        organizer = create(:user, role_ids: organizer_role.id)
+        event = create(:event, conference: conference)
+        comment = create(:comment, commentable_type: 'Event', commentable_id: event.id)
+        sign_in(organizer)
+
+        get :index
+        expect(response).to render_template(:index)
+      end
+    end
   end
 
-  describe 'grouped_comments(remarks)' do
-    it 'groups comments by conference and by event'
-    it 'returns a hash'
+  context 'logged in with any other role or normal user' do
+    describe 'GET#index' do
+      it 'requires organizer privileges' do
+        conference = create(:conference)
+        first_user = create(:user)
+        participant = create(:user)
+        event = create(:event, conference: conference)
+        comment = create(:comment, commentable_type: 'Event', commentable_id: event.id)
+        sign_in(participant)
+
+        get :index
+        expect(response).to redirect_to(root_path)
+        expect(flash[:alert]).to match('You are not authorized to access this area!')
+      end
+    end
   end
 end
diff --git a/spec/factories/users.rb b/spec/factories/users.rb
index e5c0b7c1..1f566252 100644
--- a/spec/factories/users.rb
+++ b/spec/factories/users.rb
@@ -6,6 +6,7 @@ FactoryGirl.define do
     sequence(:username) { |n| "username#{n}" }
     password 'changeme'
     password_confirmation 'changeme'
+    last_sign_in_at  { Time.now - 10.days }
     confirmed_at { Time.now }
     biography <<-EOS
       Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus enim