diff --git a/app/controllers/admin/attachments_controller.rb b/app/controllers/admin/attachments_controller.rb
index f0effd8e485..9bb37255688 100644
--- a/app/controllers/admin/attachments_controller.rb
+++ b/app/controllers/admin/attachments_controller.rb
@@ -17,6 +17,7 @@ def new; end
 
   def create
     if save_attachment
+      Whitehall.attachment_notifier.publish('create', attachment)
       redirect_to attachable_attachments_path(attachable), notice: "Attachment '#{attachment.title}' uploaded"
     else
       render :new
diff --git a/lib/whitehall.rb b/lib/whitehall.rb
index f74a75494c5..41f8ee14137 100644
--- a/lib/whitehall.rb
+++ b/lib/whitehall.rb
@@ -153,6 +153,10 @@ def self.edition_services
     @edition_actions ||= EditionServiceCoordinator.new
   end
 
+  def self.attachment_notifier
+    @attachment_notifier ||= ActiveSupport::Notifications::Fanout.new
+  end
+
   def self.organisations_in_tagging_beta
     @taggable_organisations ||=
       YAML.load_file(Rails.root + "config/organisations_in_tagging_beta.yml")["organisations_in_tagging_beta"]
diff --git a/test/functional/admin/attachments_controller_test.rb b/test/functional/admin/attachments_controller_test.rb
index 3cfed01426b..d5e0e016eec 100644
--- a/test/functional/admin/attachments_controller_test.rb
+++ b/test/functional/admin/attachments_controller_test.rb
@@ -29,6 +29,7 @@ def valid_external_attachment_params
   setup do
     login_as :gds_editor
     @edition = create(:consultation)
+    Whitehall.attachment_notifier.stubs(:publish)
   end
 
   def self.supported_attachable_types
@@ -93,6 +94,20 @@ def self.supported_attachable_types
     assert_redirected_to admin_edition_attachments_url(attachable)
   end
 
+  test "POST :create publishes event to attachment notifier on success" do
+    Whitehall.attachment_notifier.expects(:publish).with('create', is_a(Attachment))
+    attachable = create(:edition)
+
+    post :create, params: { edition_id: attachable.id, attachment: valid_file_attachment_params }
+  end
+
+  test "POST :create does not publish event to attachment notifier on failure" do
+    Whitehall.attachment_notifier.expects(:publish).never
+    attachable = create(:edition)
+
+    post :create, params: { edition_id: attachable.id, attachment: {} }
+  end
+
   view_test 'GET :index shows html attachments' do
     create(:html_attachment, title: 'An HTML attachment', attachable: @edition)