diff --git a/lib/guardian/topic_guardian.rb b/lib/guardian/topic_guardian.rb
index 05fb6ad041d..baa8d87a9a2 100644
--- a/lib/guardian/topic_guardian.rb
+++ b/lib/guardian/topic_guardian.rb
@@ -209,7 +209,8 @@ module TopicGuardian
   end
 
   def can_see_deleted_topics?(category)
-    is_staff? || is_category_group_moderator?(category)
+    is_staff? || is_category_group_moderator?(category) ||
+      (SiteSetting.tl4_delete_posts_and_topics && user.has_trust_level?(TrustLevel[4]))
   end
 
   # Accepts an array of `Topic#id` and returns an array of `Topic#id` which the user can see.
diff --git a/spec/lib/guardian/topic_guardian_spec.rb b/spec/lib/guardian/topic_guardian_spec.rb
index 94ff370848f..07a0041bd6a 100644
--- a/spec/lib/guardian/topic_guardian_spec.rb
+++ b/spec/lib/guardian/topic_guardian_spec.rb
@@ -74,6 +74,27 @@ RSpec.describe TopicGuardian do
     end
   end
 
+  describe "#can_see_deleted_topics?" do
+    it "returns true for staff" do
+      expect(Guardian.new(admin).can_see_deleted_topics?(topic.category)).to eq(true)
+    end
+
+    it "returns true for group moderator" do
+      SiteSetting.enable_category_group_moderation = true
+      expect(Guardian.new(user).can_see_deleted_topics?(topic.category)).to eq(false)
+      category.update!(reviewable_by_group_id: group.id)
+      group.add(user)
+      topic.update!(category: category)
+      expect(Guardian.new(user).can_see_deleted_topics?(topic.category)).to eq(true)
+    end
+
+    it "returns true when tl4 can delete posts and topics" do
+      expect(Guardian.new(tl4_user).can_see_deleted_topics?(topic.category)).to eq(false)
+      SiteSetting.tl4_delete_posts_and_topics = true
+      expect(Guardian.new(tl4_user).can_see_deleted_topics?(topic.category)).to eq(true)
+    end
+  end
+
   describe "#can_edit_topic?" do
     context "when the topic is a shared draft" do
       let(:tl2_user) { Fabricate(:user, trust_level: TrustLevel[2]) }