diff --git a/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/UserStatsController.java b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/UserStatsController.java
index 916b0aba4..43f7aac23 100644
--- a/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/UserStatsController.java
+++ b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/UserStatsController.java
@@ -1,10 +1,11 @@
 package com.iqser.red.persistence.service.v1.external.api.impl.controller;
 
-import static com.iqser.red.service.persistence.management.v1.processor.roles.ActionRoles.READ_USER_STATS;
+import java.util.ArrayList;
+import java.util.List;
 
-import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.RestController;
 
+import com.iqser.red.service.persistence.management.v1.processor.acl.custom.dossier.DossierACLService;
 import com.iqser.red.service.persistence.management.v1.processor.service.DossierService;
 import com.iqser.red.service.persistence.management.v1.processor.service.persistence.FileStatusPersistenceService;
 import com.iqser.red.service.persistence.management.v1.processor.service.users.UserService;
@@ -22,18 +23,29 @@ public class UserStatsController implements UserStatsResource {
     private final UserService userService;
     private final DossierService dossierService;
     private final FileStatusPersistenceService fileStatusPersistenceService;
+    private final DossierACLService dossierACLService;
 
 
     @Override
-    @PreAuthorize("hasAuthority('" + READ_USER_STATS + "')")
     public UserStats getUserStats(String userId) {
 
         if (userService.getUserById(userId).isEmpty()) {
             return null;
         }
-        return new UserStats(this.dossierService.getNumberOfDossierMemberships(userId),
-                             this.dossierService.getNumberOfDossierOwnerships(userId),
-                             this.fileStatusPersistenceService.getNumberOfAssignedFiles(userId));
+        List<String> dossierMemberships = new ArrayList<>();
+        List<String> dossierOwnerships = new ArrayList<>();
+        dossierService.getAllDossiers()
+                .stream()
+                .forEach(d -> {
+                    if (dossierACLService.getMembers(d.getId()).contains(userId)) {
+                        dossierMemberships.add(d.getId());
+                    }
+                    if (dossierACLService.getOwners(d.getId()).contains(userId)) {
+                        dossierOwnerships.add(d.getId());
+                    }
+                });
+
+        return new UserStats(dossierMemberships.size(), dossierOwnerships.size(), this.fileStatusPersistenceService.getNumberOfAssignedFiles(userId));
     }
 
 }
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/acl/custom/dossier/DossierACLService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/acl/custom/dossier/DossierACLService.java
index b60076a01..b0abc0fb2 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/acl/custom/dossier/DossierACLService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/acl/custom/dossier/DossierACLService.java
@@ -71,6 +71,23 @@ public class DossierACLService extends AbstractACLService<String> {
         return members;
     }
 
+    public Set<String> getOwners(String dossierId) {
+
+        ObjectIdentityImpl dossierIdentity = new ObjectIdentityImpl(getIdentifier(), dossierId);
+        var acl = mutableAclService.readAclById(dossierIdentity);
+        Set<String> members = new HashSet<>();
+        acl.getEntries()
+                .forEach(entry -> {
+                    if (entry.getSid() instanceof PrincipalSid) {
+                        var principal = ((PrincipalSid) entry.getSid()).getPrincipal();
+                        if (entry.getPermission().getMask() == RedPermission.OWNER.getMask()) {
+                            members.add(principal);
+                        }
+                    }
+                });
+        return members;
+    }
+
 
     @Override
     public String getIdentifier() {
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/entity/dossier/DossierEntity.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/entity/dossier/DossierEntity.java
index b0886bc76..e0bd18fe9 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/entity/dossier/DossierEntity.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/entity/dossier/DossierEntity.java
@@ -20,6 +20,7 @@ import com.iqser.red.service.persistence.service.v1.api.shared.model.dossiertemp
 import jakarta.persistence.CascadeType;
 import jakarta.persistence.Column;
 import jakarta.persistence.Convert;
+import jakarta.persistence.ElementCollection;
 import jakarta.persistence.Entity;
 import jakarta.persistence.EnumType;
 import jakarta.persistence.Enumerated;
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DossierService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DossierService.java
index 348393251..8a18c26d4 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DossierService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DossierService.java
@@ -142,18 +142,6 @@ public class DossierService {
     }
 
 
-    public int getNumberOfDossierOwnerships(String userId) {
-
-        return dossierPersistenceService.getNumberOfDossierOwnerships(userId);
-    }
-
-
-    public int getNumberOfDossierMemberships(String userId) {
-
-        return dossierPersistenceService.getNumberOfDossierMemberships(userId);
-    }
-
-
     public List<DossierEntity> getAllDossiers(List<String> dossierIds) {
 
         return dossierPersistenceService.findAllDossiers(dossierIds);
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/DossierPersistenceService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/DossierPersistenceService.java
index 65f556b5a..a4e10a712 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/DossierPersistenceService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/DossierPersistenceService.java
@@ -179,20 +179,6 @@ public class DossierPersistenceService {
     }
 
 
-    public int getNumberOfDossierOwnerships(String userId) {
-
-        List<DossierEntity> dossiers = dossierRepository.findDossiersByOwnerId(userId);
-        return dossiers.size();
-    }
-
-
-    public int getNumberOfDossierMemberships(String userId) {
-
-        List<DossierEntity> dossiers = dossierRepository.findDossiersByMemberId(userId);
-        return dossiers.size();
-    }
-
-
     public List<DossierEntity> findAllDossiers(List<String> dossierIds) {
 
         if (!dossierIds.isEmpty()) {
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/repository/DossierRepository.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/repository/DossierRepository.java
index e7a67962d..6a3b41d3b 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/repository/DossierRepository.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/persistence/repository/DossierRepository.java
@@ -18,14 +18,6 @@ public interface DossierRepository extends JpaRepository<DossierEntity, String>
     List<String> findDossierChangeByLastUpdatedIsAfter(@Param("since") OffsetDateTime since);
 
 
-    @Query("select d from DossierEntity d where d.ownerId = :ownerId")
-    List<DossierEntity> findDossiersByOwnerId(@Param("ownerId") String ownerId);
-
-
-    @Query(value = "select * from DossierEntity d where JSON_CONTAINS(d.members, :memberId, '$')", nativeQuery = true)
-    List<DossierEntity> findDossiersByMemberId(@Param("memberId") String memberId);
-
-
     @Modifying
     @Query("update DossierEntity d set d.softDeletedTime = null, d.lastUpdated = :lastUpdated where d.id = :dossierId" + " and d.hardDeletedTime is null")
     int undelete(@Param("dossierId") String dossierId, @Param("lastUpdated") OffsetDateTime lastUpdated);