diff --git a/app/controllers/schemes_controller.rb b/app/controllers/schemes_controller.rb
index 1468bc013..be5d3f7ef 100644
--- a/app/controllers/schemes_controller.rb
+++ b/app/controllers/schemes_controller.rb
@@ -145,8 +145,8 @@ class SchemesController < ApplicationController
     if @scheme.errors.empty? && @scheme.update(scheme_params)
       @scheme.update!(secondary_client_group: nil) if @scheme.has_other_client_group == "No"
       if scheme_params[:confirmed] == "true" || @scheme.confirmed?
-        if check_answers && confirm_secondary_page?(page)
-          redirect_to scheme_secondary_client_group_path(@scheme, check_answers: "true")
+        if check_answers && should_direct_via_secondary_client_group_page?(page)
+          redirect_to scheme_secondary_client_group_path(@scheme, referrer: "check-answers")
         else
           @scheme.locations.update!(confirmed: true)
           flash[:notice] = if scheme_previously_confirmed
@@ -157,8 +157,8 @@ class SchemesController < ApplicationController
           redirect_to scheme_path(@scheme)
         end
       elsif check_answers
-        if confirm_secondary_page?(page)
-          redirect_to scheme_secondary_client_group_path(@scheme, check_answers: "true")
+        if should_direct_via_secondary_client_group_page?(page)
+          redirect_to scheme_secondary_client_group_path(@scheme, referrer: "check-answers")
         else
           redirect_to scheme_check_answers_path(@scheme)
         end
@@ -249,8 +249,8 @@ private
     end
   end
 
-  def confirm_secondary_page?(page)
-    page == "confirm-secondary" && @scheme.has_other_client_group == "Yes"
+  def should_direct_via_secondary_client_group_page?(page)
+    page == "confirm-secondary" && @scheme.has_other_client_group == "Yes" && @scheme.secondary_client_group.nil?
   end
 
   def current_template(page)
diff --git a/app/helpers/schemes_helper.rb b/app/helpers/schemes_helper.rb
index 7efb9fffd..bcd40b082 100644
--- a/app/helpers/schemes_helper.rb
+++ b/app/helpers/schemes_helper.rb
@@ -64,15 +64,15 @@ module SchemesHelper
   def change_answer_link(scheme, question_id, user)
     case question_id
     when "service_name", "sensitive", "scheme_type", "registered_under_care_act", "owning_organisation_id", "arrangement_type"
-      user.support? || !scheme.confirmed? ? scheme_details_path(scheme, check_answers: true) : scheme_edit_name_path(scheme)
+      user.support? || !scheme.confirmed? ? scheme_details_path(scheme, referrer: "check-answers") : scheme_edit_name_path(scheme)
     when "primary_client_group"
-      scheme_primary_client_group_path(scheme, check_answers: true)
+      scheme_primary_client_group_path(scheme, referrer: "check-answers")
     when "has_other_client_group"
-      scheme_confirm_secondary_client_group_path(scheme, check_answers: true)
+      scheme_confirm_secondary_client_group_path(scheme, referrer: "check-answers")
     when "secondary_client_group"
-      scheme_secondary_client_group_path(scheme, check_answers: true)
+      scheme_secondary_client_group_path(scheme, referrer: "check-answers")
     when "support_type", "intended_stay"
-      scheme_support_path(scheme, check_answers: true)
+      scheme_support_path(scheme, referrer: "check-answers")
     end
   end
 
diff --git a/app/views/schemes/confirm_secondary.html.erb b/app/views/schemes/confirm_secondary.html.erb
index 7e7cfeebf..9b715c264 100644
--- a/app/views/schemes/confirm_secondary.html.erb
+++ b/app/views/schemes/confirm_secondary.html.erb
@@ -1,9 +1,7 @@
 <% content_for :title, "Does this scheme provide for another client group?" %>
 
 <% content_for :before_content do %>
-  <%= govuk_back_link(
-    href: request.query_parameters["check_answers"] ? "check-answers" : "primary-client-group",
-  ) %>
+  <%= govuk_back_link(href: :back) %>
 <% end %>
 
 <%= render partial: "organisations/headings", locals: { main: "Does this scheme provide for another client group?", sub: @scheme.service_name } %>
@@ -22,7 +20,7 @@
         legend: nil %>
 
       <%= f.hidden_field :page, value: "confirm-secondary" %>
-      <% if request.query_parameters["check_answers"] == "true" %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
         <%= f.govuk_submit "Save changes" %>
       <% else %>
diff --git a/app/views/schemes/details.html.erb b/app/views/schemes/details.html.erb
index 71f924782..cb29a56dc 100644
--- a/app/views/schemes/details.html.erb
+++ b/app/views/schemes/details.html.erb
@@ -75,7 +75,7 @@
                                            legend: { text: "Who provides the support services used by this scheme?", size: "m" } %>
 
       <%= f.hidden_field :page, value: "details" %>
-      <% if request.query_parameters["check_answers"] %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
         <%= f.govuk_submit "Save changes" %>
       <% else %>
diff --git a/app/views/schemes/edit_name.html.erb b/app/views/schemes/edit_name.html.erb
index 030635b79..2cb0f791a 100644
--- a/app/views/schemes/edit_name.html.erb
+++ b/app/views/schemes/edit_name.html.erb
@@ -39,7 +39,7 @@
 
       <%= f.hidden_field :page, value: "edit-name" %>
 
-      <% if request.query_parameters["check_answers"] %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
       <% end %>
 
diff --git a/app/views/schemes/primary_client_group.html.erb b/app/views/schemes/primary_client_group.html.erb
index 85db05b55..55dc504b4 100644
--- a/app/views/schemes/primary_client_group.html.erb
+++ b/app/views/schemes/primary_client_group.html.erb
@@ -1,9 +1,9 @@
 <% content_for :title, "What client group is this scheme intended for?" %>
 
-<% if request.referer&.include?("new") || request.referer&.include?("details") %>
+<% if request.referer&.include?("new") %>
   <% back_button_path = scheme_details_path(@scheme) %>
-<% elsif request.query_parameters["check_answers"] %>
-  <% back_button_path = scheme_check_answers_path(@scheme) %>
+<% else %>
+  <% back_button_path = :back %>
 <% end %>
 
 <% content_for :before_content do %>
@@ -30,7 +30,7 @@
         <%= f.hidden_field :check_answers, value: "true" %>
       <% end %>
 
-      <% if request.query_parameters["check_answers"] == "true" %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
         <%= f.govuk_submit "Save changes" %>
       <% else %>
diff --git a/app/views/schemes/secondary_client_group.html.erb b/app/views/schemes/secondary_client_group.html.erb
index 1e70fd92b..cd50283e3 100644
--- a/app/views/schemes/secondary_client_group.html.erb
+++ b/app/views/schemes/secondary_client_group.html.erb
@@ -1,9 +1,7 @@
 <% content_for :title, "What is the other client group?" %>
 
 <% content_for :before_content do %>
-  <%= govuk_back_link(
-    href: request.query_parameters["check_answers"] ? "check-answers" : "confirm-secondary-client-group",
-  ) %>
+  <%= govuk_back_link(href: :back) %>
 <% end %>
 
 <%= form_for(@scheme, method: :patch) do |f| %>
@@ -22,7 +20,7 @@
         legend: nil %>
 
       <%= f.hidden_field :page, value: "secondary-client-group" %>
-      <% if request.query_parameters["check_answers"] == "true" %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
         <%= f.govuk_submit "Save changes" %>
       <% else %>
diff --git a/app/views/schemes/support.html.erb b/app/views/schemes/support.html.erb
index a004a3da9..a5d30ed7f 100644
--- a/app/views/schemes/support.html.erb
+++ b/app/views/schemes/support.html.erb
@@ -1,9 +1,7 @@
 <% content_for :title, "What support does this scheme provide?" %>
 
 <% content_for :before_content do %>
-  <%= govuk_back_link(
-    href: request.query_parameters["check_answers"] ? "check-answers" : "secondary-client-group",
-  ) %>
+  <%= govuk_back_link(href: :back) %>
 <% end %>
 
 <%= form_for(@scheme, method: :patch) do |f| %>
@@ -38,7 +36,7 @@
 
       <%= f.hidden_field :page, value: "support" %>
 
-      <% if request.query_parameters["check_answers"] == "true" %>
+      <% if params[:referrer] == "check-answers" %>
         <%= f.hidden_field :check_answers, value: "true" %>
         <%= f.govuk_submit "Save changes" %>
       <% else %>
diff --git a/spec/features/schemes_spec.rb b/spec/features/schemes_spec.rb
index 0706a0d7e..33ab00b34 100644
--- a/spec/features/schemes_spec.rb
+++ b/spec/features/schemes_spec.rb
@@ -644,8 +644,8 @@ RSpec.describe "Schemes scheme Features" do
           end
 
           it "allows changing details questions" do
-            click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
-            expect(page).to have_current_path("/schemes/#{scheme.id}/details?check_answers=true")
+            click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
+            expect(page).to have_current_path("/schemes/#{scheme.id}/details?referrer=check-answers")
 
             fill_in "Scheme name", with: "Example"
             click_button "Save changes"
@@ -655,14 +655,14 @@ RSpec.describe "Schemes scheme Features" do
           end
 
           it "lets me select the support answers after navigating back" do
-            click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
+            click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
             click_link "Back"
             expect(page).to have_current_path("/schemes/#{scheme.id}/check-answers")
             expect(page).to have_content "Check your changes before creating this scheme"
           end
 
           it "indicates if the scheme is not complete" do
-            click_link("Change", href: "/schemes/#{scheme.id}/confirm-secondary-client-group?check_answers=true", match: :first)
+            click_link("Change", href: "/schemes/#{scheme.id}/confirm-secondary-client-group?referrer=check-answers", match: :first)
             choose "Yes"
             click_button "Save changes"
             visit("/schemes/#{scheme.id}/check-answers")
@@ -710,8 +710,8 @@ RSpec.describe "Schemes scheme Features" do
             end
 
             it "allows changing details questions" do
-              click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
-              expect(page).to have_current_path("/schemes/#{scheme.id}/details?check_answers=true")
+              click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
+              expect(page).to have_current_path("/schemes/#{scheme.id}/details?referrer=check-answers")
 
               fill_in "Scheme name", with: "Example"
               click_button "Save changes"
@@ -721,21 +721,14 @@ RSpec.describe "Schemes scheme Features" do
             end
 
             it "lets me select the support answers after navigating back" do
-              click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
+              click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
               click_link "Back"
               expect(page).to have_current_path("/schemes/#{scheme.id}/check-answers")
               expect(page).to have_content "Check your changes before creating this scheme"
             end
 
-            it "keeps the provider answer when switching between other provider options" do
-              click_link("Change", href: "/schemes/#{scheme.id}/confirm-secondary-client-group?check_answers=true", match: :first)
-              choose "Yes"
-              click_button "Save changes"
-              expect(find_field("Offenders and people at risk of offending")).to be_checked
-            end
-
             it "does not display the answer if it's changed to the same support provider" do
-              click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
+              click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
               choose "The same organisation that owns the housing stock"
               click_button "Save changes"
               expect(page).not_to have_content("Organisation providing support")
@@ -787,11 +780,11 @@ RSpec.describe "Schemes scheme Features" do
 
           context "when I click to change scheme name" do
             before do
-              click_link("Change", href: "/schemes/#{scheme.id}/details?check_answers=true", match: :first)
+              click_link("Change", href: "/schemes/#{scheme.id}/details?referrer=check-answers", match: :first)
             end
 
             it "shows available fields to edit" do
-              expect(page).to have_current_path("/schemes/#{scheme.id}/details?check_answers=true")
+              expect(page).to have_current_path("/schemes/#{scheme.id}/details?referrer=check-answers")
               expect(page).to have_content "Scheme details"
             end
 
diff --git a/spec/requests/schemes_controller_spec.rb b/spec/requests/schemes_controller_spec.rb
index d93bc873d..19ede5cc4 100644
--- a/spec/requests/schemes_controller_spec.rb
+++ b/spec/requests/schemes_controller_spec.rb
@@ -1405,10 +1405,11 @@ RSpec.describe SchemesController, type: :request do
           expect(scheme_to_update.reload.has_other_client_group).to eq("Yes")
         end
 
-        context "when updating from check answers page with the answer YES" do
+        context "when updating from check answers page with the answer YES and no secondary client group set" do
+          let(:scheme_to_update) { create(:scheme, owning_organisation: user.organisation, confirmed: nil, secondary_client_group: nil) }
           let(:params) { { scheme: { has_other_client_group: "Yes", page: "confirm-secondary", check_answers: "true" } } }
 
-          it "renders check answers page after successful update" do
+          it "renders secondary client group page after successful update" do
             follow_redirect!
             expect(response).to have_http_status(:ok)
             expect(page).to have_content("What is the other client group?")
@@ -1420,6 +1421,22 @@ RSpec.describe SchemesController, type: :request do
           end
         end
 
+        context "when updating from check answers page with the answer YES and a secondary client group set" do
+          let(:scheme_to_update) { create(:scheme, owning_organisation: user.organisation, confirmed: nil, secondary_client_group: "F") }
+          let(:params) { { scheme: { has_other_client_group: "Yes", page: "confirm-secondary", check_answers: "true" } } }
+
+          it "renders check answers page after successful update" do
+            follow_redirect!
+            expect(response).to have_http_status(:ok)
+            expect(page).to have_content("Check your changes before creating this scheme")
+          end
+
+          it "updates a scheme with valid params" do
+            follow_redirect!
+            expect(scheme_to_update.reload.has_other_client_group).to eq("Yes")
+          end
+        end
+
         context "when updating from check answers page with the answer NO" do
           let(:params) { { scheme: { has_other_client_group: "No", page: "confirm-secondary", check_answers: "true" } } }
 
@@ -1716,10 +1733,11 @@ RSpec.describe SchemesController, type: :request do
           expect(scheme_to_update.reload.has_other_client_group).to eq("Yes")
         end
 
-        context "when updating from check answers page with the answer YES" do
+        context "when updating from check answers page with the answer YES and no existing secondary client group set" do
+          let(:scheme_to_update) { create(:scheme, owning_organisation: user.organisation, confirmed: nil, secondary_client_group: nil) }
           let(:params) { { scheme: { has_other_client_group: "Yes", page: "confirm-secondary", check_answers: "true" } } }
 
-          it "renders check answers page after successful update" do
+          it "renders secondary client group page after successful update" do
             follow_redirect!
             expect(response).to have_http_status(:ok)
             expect(page).to have_content("What is the other client group?")
@@ -1731,6 +1749,22 @@ RSpec.describe SchemesController, type: :request do
           end
         end
 
+        context "when updating from check answers page with the answer YES and an existing secondary client group set" do
+          let(:scheme_to_update) { create(:scheme, owning_organisation: user.organisation, confirmed: nil, secondary_client_group: "F") }
+          let(:params) { { scheme: { has_other_client_group: "Yes", page: "confirm-secondary", check_answers: "true" } } }
+
+          it "renders check answers page after successful update" do
+            follow_redirect!
+            expect(response).to have_http_status(:ok)
+            expect(page).to have_content("Check your changes before creating this scheme")
+          end
+
+          it "updates a scheme with valid params" do
+            follow_redirect!
+            expect(scheme_to_update.reload.has_other_client_group).to eq("Yes")
+          end
+        end
+
         context "when updating from check answers page with the answer NO" do
           let(:params) { { scheme: { has_other_client_group: "No", page: "confirm-secondary", check_answers: "true" } } }