diff --git a/api/lib/domain/usecases/get-user-details-for-admin.js b/api/lib/domain/usecases/get-user-details-for-admin.js
deleted file mode 100644
index 021a445c0c1..00000000000
--- a/api/lib/domain/usecases/get-user-details-for-admin.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const getUserDetailsForAdmin = async function ({ userId, userRepository }) {
-  return await userRepository.getUserDetailsForAdmin(userId);
-};
-
-export { getUserDetailsForAdmin };
diff --git a/api/src/identity-access-management/application/user/user.admin.controller.js b/api/src/identity-access-management/application/user/user.admin.controller.js
index ceeb7c70b68..eacbc3e5829 100644
--- a/api/src/identity-access-management/application/user/user.admin.controller.js
+++ b/api/src/identity-access-management/application/user/user.admin.controller.js
@@ -1,4 +1,3 @@
-import { usecases as libUsecases } from '../../../../lib/domain/usecases/index.js';
 import { usecases } from '../../domain/usecases/index.js';
 import * as userDetailsForAdminSerializer from '../../infrastructure/serializers/jsonapi/user-details-for-admin.serializer.js';
 import * as userForAdminSerializer from '../../infrastructure/serializers/jsonapi/user-for-admin.serializer.js';
@@ -59,7 +58,7 @@ const updateUserDetailsByAdmin = async function (request, h, dependencies = { us
  */
 const getUserDetails = async function (request, h, dependencies = { userDetailsForAdminSerializer }) {
   const userId = request.params.id;
-  const userDetailsForAdmin = await libUsecases.getUserDetailsForAdmin({ userId });
+  const userDetailsForAdmin = await usecases.getUserDetailsForAdmin({ userId });
   return dependencies.userDetailsForAdminSerializer.serialize(userDetailsForAdmin);
 };
 
diff --git a/api/src/identity-access-management/domain/usecases/get-user-details-for-admin.js b/api/src/identity-access-management/domain/usecases/get-user-details-for-admin.js
new file mode 100644
index 00000000000..60239687208
--- /dev/null
+++ b/api/src/identity-access-management/domain/usecases/get-user-details-for-admin.js
@@ -0,0 +1,12 @@
+/**
+ * @param {Object} params
+ * @param {string} params.userId
+ * @param {UserRepository} userRepository
+ * @throws UserNotFoundError
+ * @returns {Promise<UserDetailsForAdmin>}
+ */
+const getUserDetailsForAdmin = async function ({ userId, userRepository }) {
+  return await userRepository.getUserDetailsForAdmin(userId);
+};
+
+export { getUserDetailsForAdmin };
diff --git a/api/tests/identity-access-management/unit/application/user/user.admin.controller.test.js b/api/tests/identity-access-management/unit/application/user/user.admin.controller.test.js
index 1e0709bd6f2..08b08abb371 100644
--- a/api/tests/identity-access-management/unit/application/user/user.admin.controller.test.js
+++ b/api/tests/identity-access-management/unit/application/user/user.admin.controller.test.js
@@ -1,4 +1,3 @@
-import { usecases as libUsecases } from '../../../../../lib/domain/usecases/index.js';
 import { userAdminController } from '../../../../../src/identity-access-management/application/user/user.admin.controller.js';
 import { User } from '../../../../../src/identity-access-management/domain/models/User.js';
 import { usecases } from '../../../../../src/identity-access-management/domain/usecases/index.js';
@@ -168,14 +167,14 @@ describe('Unit | Identity Access Management | Application | Controller | Admin |
     beforeEach(function () {
       request = { params: { id: 123 } };
 
-      sinon.stub(libUsecases, 'getUserDetailsForAdmin');
+      sinon.stub(usecases, 'getUserDetailsForAdmin');
       const userDetailsForAdminSerializer = { serialize: sinon.stub() };
       dependencies = { userDetailsForAdminSerializer };
     });
 
     it('gets the specified user', async function () {
       // given
-      libUsecases.getUserDetailsForAdmin.withArgs({ userId: 123 }).resolves('userDetail');
+      usecases.getUserDetailsForAdmin.withArgs({ userId: 123 }).resolves('userDetail');
       dependencies.userDetailsForAdminSerializer.serialize.withArgs('userDetail').returns('ok');
 
       // when
diff --git a/api/tests/unit/domain/usecases/get-user-details-for-admin_test.js b/api/tests/identity-access-management/unit/domain/usecases/get-user-details-for-admin_test.js
similarity index 55%
rename from api/tests/unit/domain/usecases/get-user-details-for-admin_test.js
rename to api/tests/identity-access-management/unit/domain/usecases/get-user-details-for-admin_test.js
index c87fdacc8ea..c9277ca2c6a 100644
--- a/api/tests/unit/domain/usecases/get-user-details-for-admin_test.js
+++ b/api/tests/identity-access-management/unit/domain/usecases/get-user-details-for-admin_test.js
@@ -1,14 +1,14 @@
-import { getUserDetailsForAdmin } from '../../../../lib/domain/usecases/get-user-details-for-admin.js';
-import { expect, sinon } from '../../../test-helper.js';
+import { getUserDetailsForAdmin } from '../../../../../src/identity-access-management/domain/usecases/get-user-details-for-admin.js';
+import { expect, sinon } from '../../../../test-helper.js';
 
-describe('Unit | UseCase | get-user-details-for-admin', function () {
+describe('Unit | Identity Access Management | Domain | UseCase | get-user-details-for-admin', function () {
   let userRepository;
 
   beforeEach(function () {
     userRepository = { getUserDetailsForAdmin: sinon.stub() };
   });
 
-  it('should get the user details in administration context', async function () {
+  it('gets the user details in administration context', async function () {
     // given
     const userId = 1;
     const expectedUserDetailsForAdmin = { id: userId };