diff --git a/app/controllers/evaluation/application_controller.rb b/app/controllers/evaluation/application_controller.rb
index 7920515ab..7d1d6b5f0 100644
--- a/app/controllers/evaluation/application_controller.rb
+++ b/app/controllers/evaluation/application_controller.rb
@@ -1,4 +1,15 @@
 module Evaluation
   class ApplicationController < ::ApplicationController
+  protected
+
+    def authenticate_user!
+      return unless current_user.guest?
+
+      session.delete(:dfe_sign_in_uid)
+      if params[:controller] == "evaluation/tasks" && params[:action] == "edit"
+        session[:email_evaluator_link] = evaluation_task_path(id: params[:id], host: request.host)
+      end
+      redirect_to root_path, notice: I18n.t("banner.session.visitor")
+    end
   end
 end
diff --git a/app/views/specify/home/_evaluation.html.erb b/app/views/specify/home/_evaluation.html.erb
index 48baad7ad..38c7d1487 100644
--- a/app/views/specify/home/_evaluation.html.erb
+++ b/app/views/specify/home/_evaluation.html.erb
@@ -20,7 +20,7 @@
 
 <p class="govuk-body">
   <%= I18n.t("specifying.evaluation_page.watch_video") %> 
-  <%= govuk_link_to I18n.t("specifying.evaluation_page.watch_video_link"),  "https://www.youtube.com/watch?v=cbL65QlOas4", no_visited_state: true %>
+  <%= govuk_link_to I18n.t("specifying.evaluation_page.watch_video_link"),  "https://www.youtube.com/watch?v=cbL65QlOas4", no_visited_state: true, target: "_blank" %>
 </p>
 <p class="govuk-body"><%= I18n.t("specifying.evaluation_page.evaluate_independently") %></p>
 <p class="govuk-body"><%= I18n.t("specifying.evaluation_page.justification") %></p>