diff --git a/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.resolver.ts b/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.resolver.ts
index fc0a1a15c77b..ab22683576e9 100644
--- a/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.resolver.ts
+++ b/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.resolver.ts
@@ -287,4 +287,13 @@ export class SignatureCollectionAdminResolver {
   ): Promise<SignatureCollectionAreaSummaryReport> {
     return this.signatureCollectionService.getAreaSummaryReport(input, user)
   }
+
+  @Mutation(() => SignatureCollectionSuccess)
+  @Audit()
+  async signatureCollectionLockList(
+    @CurrentUser() user: User,
+    @Args('input') input: SignatureCollectionListIdInput,
+  ): Promise<SignatureCollectionSuccess> {
+    return this.signatureCollectionService.lockList(input, user)
+  }
 }
diff --git a/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.service.ts b/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.service.ts
index c3f5a569d4ee..10f1dc605d8e 100644
--- a/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.service.ts
+++ b/libs/api/domains/signature-collection/src/lib/signatureCollectionAdmin.service.ts
@@ -25,6 +25,7 @@ import { SignatureCollectionSignatureUpdateInput } from './dto/signatureUpdate.i
 import { SignatureCollectionSignatureLookupInput } from './dto/signatureLookup.input'
 import { SignatureCollectionAreaSummaryReportInput } from './dto/areaSummaryReport.input'
 import { SignatureCollectionAreaSummaryReport } from './models/areaSummaryReport.model'
+import { SignatureCollectionListIdInput } from './dto'
 
 @Injectable()
 export class SignatureCollectionAdminService {
@@ -220,4 +221,14 @@ export class SignatureCollectionAdminService {
       input.areaId,
     )
   }
+
+  async lockList(
+    input: SignatureCollectionListIdInput,
+    user: User,
+  ): Promise<SignatureCollectionSuccess> {
+    return await this.signatureCollectionClientService.lockList(
+      user,
+      input.listId,
+    )
+  }
 }
diff --git a/libs/clients/signature-collection/src/lib/signature-collection-admin.service.ts b/libs/clients/signature-collection/src/lib/signature-collection-admin.service.ts
index 6c083138d43c..9421457055fe 100644
--- a/libs/clients/signature-collection/src/lib/signature-collection-admin.service.ts
+++ b/libs/clients/signature-collection/src/lib/signature-collection-admin.service.ts
@@ -374,4 +374,18 @@ export class SignatureCollectionAdminClientService {
       return []
     }
   }
+
+  async lockList(auth: Auth, listId: string): Promise<Success> {
+    try {
+      const res = await this.getApiWithAuth(
+        this.adminApi,
+        auth,
+      ).adminMedmaelalistiIDLockListPatch({
+        iD: parseInt(listId, 10),
+      })
+      return { success: res.listaLokad ?? false }
+    } catch {
+      return { success: false }
+    }
+  }
 }