diff --git a/packages/conf/DittoConf.ts b/packages/conf/DittoConf.ts
index 59a3fde4..c48619f9 100644
--- a/packages/conf/DittoConf.ts
+++ b/packages/conf/DittoConf.ts
@@ -368,6 +368,11 @@ export class DittoConf {
     return this.env.get('DITTO_POLICY') || path.join(this.dataDir, 'policy.ts');
   }
 
+  get policyMode(): string {
+    if (Deno.env.get("DITTO_CUSTOM_POLICY") === "1") return "script";
+    return "event";
+  }
+
   /** Absolute path to the data directory used by Ditto. */
   get dataDir(): string {
     return this.env.get('DITTO_DATA_DIR') || path.join(Deno.cwd(), 'data');