diff --git a/app/models/reviewable.rb b/app/models/reviewable.rb
index 0a790951d12..5535ca375f3 100644
--- a/app/models/reviewable.rb
+++ b/app/models/reviewable.rb
@@ -103,6 +103,7 @@ class Reviewable < ActiveRecord::Base
     payload: nil,
     reviewable_by_moderator: false,
     potential_spam: true,
+    potentially_illegal: false,
     target_created_by: nil
   )
     reviewable =
@@ -113,6 +114,7 @@ class Reviewable < ActiveRecord::Base
         reviewable_by_moderator: reviewable_by_moderator,
         payload: payload,
         potential_spam: potential_spam,
+        potentially_illegal: potentially_illegal,
         target_created_by: target_created_by,
       )
     reviewable.created_new!
@@ -136,12 +138,14 @@ class Reviewable < ActiveRecord::Base
         id: target.id,
         type: target.class.polymorphic_name,
         potential_spam: potential_spam == true ? true : nil,
+        potentially_illegal: potentially_illegal == true ? true : nil,
       }
 
       row = DB.query_single(<<~SQL, update_args)
         UPDATE reviewables
         SET status = :status,
-          potential_spam = COALESCE(:potential_spam, reviewables.potential_spam)
+          potential_spam = COALESCE(:potential_spam, reviewables.potential_spam),
+          potentially_illegal = COALESCE(:potentially_illegal, reviewables.potentially_illegal)
         FROM reviewables AS old_reviewables
         WHERE reviewables.target_id = :id
           AND reviewables.target_type = :type
@@ -776,6 +780,7 @@ end
 #  updated_at              :datetime         not null
 #  force_review            :boolean          default(FALSE), not null
 #  reject_reason           :text
+#  potentially_illegal     :boolean          default(FALSE)
 #
 # Indexes
 #
diff --git a/app/models/reviewable_flagged_post.rb b/app/models/reviewable_flagged_post.rb
index 1c870b53840..7e7a334a405 100644
--- a/app/models/reviewable_flagged_post.rb
+++ b/app/models/reviewable_flagged_post.rb
@@ -48,10 +48,6 @@ class ReviewableFlaggedPost < Reviewable
     agree_bundle =
       actions.add_bundle("#{id}-agree", icon: "thumbs-up", label: "reviewables.actions.agree.title")
 
-    if potential_spam? && guardian.can_delete_user?(target_created_by)
-      delete_user_actions(actions, agree_bundle)
-    end
-
     if !post.user_deleted? && !post.hidden?
       build_action(actions, :agree_and_hide, icon: "far-eye-slash", bundle: agree_bundle)
     end
@@ -83,6 +79,10 @@ class ReviewableFlaggedPost < Reviewable
       end
     end
 
+    if (potential_spam? || potentially_illegal?) && guardian.can_delete_user?(target_created_by)
+      delete_user_actions(actions, agree_bundle)
+    end
+
     if guardian.can_suspend?(target_created_by)
       build_action(
         actions,
@@ -416,6 +416,7 @@ end
 #  updated_at              :datetime         not null
 #  force_review            :boolean          default(FALSE), not null
 #  reject_reason           :text
+#  potentially_illegal     :boolean          default(FALSE)
 #
 # Indexes
 #
diff --git a/app/models/reviewable_post.rb b/app/models/reviewable_post.rb
index b9f7d3653ea..addd50650fc 100644
--- a/app/models/reviewable_post.rb
+++ b/app/models/reviewable_post.rb
@@ -155,6 +155,7 @@ end
 #  updated_at              :datetime         not null
 #  force_review            :boolean          default(FALSE), not null
 #  reject_reason           :text
+#  potentially_illegal     :boolean          default(FALSE)
 #
 # Indexes
 #
diff --git a/app/models/reviewable_queued_post.rb b/app/models/reviewable_queued_post.rb
index a36e9f61738..342508912fe 100644
--- a/app/models/reviewable_queued_post.rb
+++ b/app/models/reviewable_queued_post.rb
@@ -257,6 +257,7 @@ end
 #  updated_at              :datetime         not null
 #  force_review            :boolean          default(FALSE), not null
 #  reject_reason           :text
+#  potentially_illegal     :boolean          default(FALSE)
 #
 # Indexes
 #
diff --git a/app/models/reviewable_user.rb b/app/models/reviewable_user.rb
index 12a05027256..c7e2429ac76 100644
--- a/app/models/reviewable_user.rb
+++ b/app/models/reviewable_user.rb
@@ -119,6 +119,7 @@ end
 #  updated_at              :datetime         not null
 #  force_review            :boolean          default(FALSE), not null
 #  reject_reason           :text
+#  potentially_illegal     :boolean          default(FALSE)
 #
 # Indexes
 #
diff --git a/db/migrate/20241127034553_add_potentially_illegal_to_reviewables.rb b/db/migrate/20241127034553_add_potentially_illegal_to_reviewables.rb
new file mode 100644
index 00000000000..29b79030008
--- /dev/null
+++ b/db/migrate/20241127034553_add_potentially_illegal_to_reviewables.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+#
+class AddPotentiallyIllegalToReviewables < ActiveRecord::Migration[7.1]
+  def change
+    add_column :reviewables, :potentially_illegal, :boolean
+
+    up_only do
+      # NOTE: Only for records created after this migration. Trying to
+      # apply this as part of adding the column will attempt to backfill
+      # `false` into all existing reviewables. This is dangerous (locks
+      # a potentially huge table) and will create some false negatives.
+      #
+      change_column_default :reviewables, :potentially_illegal, false
+    end
+  end
+end
diff --git a/lib/post_action_creator.rb b/lib/post_action_creator.rb
index 41f2432c413..d0de531ae45 100644
--- a/lib/post_action_creator.rb
+++ b/lib/post_action_creator.rb
@@ -388,6 +388,7 @@ class PostActionCreator
         topic: @post.topic,
         reviewable_by_moderator: true,
         potential_spam: @post_action_type_id == @post_action_type_view.types[:spam],
+        potentially_illegal: @post_action_type_id == @post_action_type_view.types[:illegal],
         payload: {
           targets_topic: @targets_topic,
         },
diff --git a/spec/models/reviewable_flagged_post_spec.rb b/spec/models/reviewable_flagged_post_spec.rb
index bbfcae30d2b..c917072263d 100644
--- a/spec/models/reviewable_flagged_post_spec.rb
+++ b/spec/models/reviewable_flagged_post_spec.rb
@@ -16,6 +16,13 @@ RSpec.describe ReviewableFlaggedPost, type: :model do
     expect(reviewable.reload.potential_spam?).to eq(true)
   end
 
+  it "sets `potentially_illegal` when an illegal flag is added" do
+    reviewable = PostActionCreator.off_topic(user, post).reviewable
+    expect(reviewable.potentially_illegal?).to eq(false)
+    PostActionCreator.illegal(Fabricate(:user, refresh_auto_groups: true), post)
+    expect(reviewable.reload.potentially_illegal?).to eq(true)
+  end
+
   describe "actions" do
     let!(:result) { PostActionCreator.spam(user, post) }
     let(:reviewable) { result.reviewable }
@@ -95,7 +102,26 @@ RSpec.describe ReviewableFlaggedPost, type: :model do
       end
 
       context "when flagged as potential_spam" do
-        before { reviewable.update!(potential_spam: true) }
+        before { reviewable.update!(potential_spam: true, potentially_illegal: false) }
+
+        it "excludes delete action if the reviewer cannot delete the user" do
+          post.user.user_stat.update!(
+            first_post_created_at: 1.year.ago,
+            post_count: User::MAX_STAFF_DELETE_POST_COUNT + 1,
+          )
+
+          expect(reviewable.actions_for(guardian).has?(:delete_user)).to be false
+          expect(reviewable.actions_for(guardian).has?(:delete_user_block)).to be false
+        end
+
+        it "includes delete actions if the reviewer can delete the user" do
+          expect(reviewable.actions_for(guardian).has?(:delete_user)).to be true
+          expect(reviewable.actions_for(guardian).has?(:delete_user_block)).to be true
+        end
+      end
+
+      context "when flagged as illegal" do
+        before { reviewable.update(potential_spam: false, potentially_illegal: true) }
 
         it "excludes delete action if the reviewer cannot delete the user" do
           post.user.user_stat.update!(