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/ImageSimilaritySearchController.java b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
index 23839b430..411f44eb8 100644
--- a/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
+++ b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
@@ -11,10 +11,10 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
 
-import com.iqser.red.service.persistence.management.v1.processor.service.image.ImageSimilarityService;
+import com.iqser.red.service.persistence.management.v1.processor.service.ImageSimilarityService;
 import com.iqser.red.service.persistence.service.v1.api.external.resource.ImageSimilaritySearchResource;
-import com.iqser.red.service.persistence.service.v1.api.shared.model.image.ImageSimilaritySearchResponse;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.image.ImageSimilaritySearchRequest;
+import com.iqser.red.service.persistence.service.v1.api.shared.model.image.ImageSimilaritySearchResponse;
 import com.iqser.red.service.persistence.service.v1.api.shared.mongo.document.ImageDocument;
 
 import lombok.RequiredArgsConstructor;
@@ -26,17 +26,17 @@ import lombok.extern.slf4j.Slf4j;
 @Slf4j
 public class ImageSimilaritySearchController implements ImageSimilaritySearchResource {
 
-    private final ImageSimilarityService imageSimiliarityService;
+    private final ImageSimilarityService imageSimilarityService;
 
 
     @SneakyThrows
+    @PreAuthorize("hasAuthority('" + GET_SIMILIAR_IMAGES + "')")
     public ResponseEntity<ImageSimilaritySearchResponse> getSimilarImages(@RequestBody ImageSimilaritySearchRequest imageSimilaritySearchRequest) {
 
-
-        log.info("received similiar image search request {}",imageSimilaritySearchRequest);
-        List<ImageDocument> similarImages = this.imageSimiliarityService.findSimilarImages(imageSimilaritySearchRequest.getCentroId(),
-                                                                                           imageSimilaritySearchRequest.getDistance(),
-                                                                                           imageSimilaritySearchRequest.getScope());
+        log.info("received similiar image search request {}", imageSimilaritySearchRequest);
+        List<ImageDocument> similarImages = this.imageSimilarityService.findSimilarImages(imageSimilaritySearchRequest.getCentroId(),
+                                                                                          imageSimilaritySearchRequest.getDistance(),
+                                                                                          imageSimilaritySearchRequest.getScope());
         List<String> similarImagesIds = new ArrayList<>();
         List<Byte> similarImagesThumbnails = new ArrayList<>();
         similarImages.stream()
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
index e0e538994..983c3951d 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
@@ -11,7 +11,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.iqser.red.service.persistence.management.v1.processor.service.FileManagementStorageService;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.utils.Scope;
 import com.iqser.red.service.persistence.service.v1.api.shared.mongo.document.ImageDocument;
 import com.iqser.red.service.persistence.service.v1.api.shared.mongo.service.ImageMongoService;
@@ -33,12 +32,10 @@ public class ImageSimilarityService {
     ObjectMapper objectMapper;
 
 
-    //load all recat requests and find similiar images
     public void saveImages(String templateId, String dossierId, String fileId, String storageId) throws IOException {
-        //load structure files of all files in template
+
         List<ImageDocument> imageDocuments = new ArrayList<>();
         try (InputStream inputStream = fileManagementStorageService.getObject(TenantContext.getTenantId(), storageId)) {
-            //load images from structures
             DocumentStructure documentStructure = objectMapper.readValue(inputStream, DocumentStructure.class);
             documentStructure.streamAllEntries()
                     .filter(entry -> entry.getType().equals(NodeType.IMAGE))
@@ -64,9 +61,9 @@ public class ImageSimilarityService {
     public List<ImageDocument> findSimilarImages(String centroId, double distance, Scope scope) throws Exception {
 
         ImageDocument centroImage = this.imageMongoService.findById(centroId);
-        log.info("image received with id {}: {}",centroId, centroImage);
+        log.info("image received with id {}: {}", centroId, centroImage);
         List<ImageDocument> similarImages = this.imageMongoService.findSimilarImages(centroImage, distance, scope);
-        log.info("received similar images: {}",similarImages);
+        log.info("received similar images: {}", similarImages);
         return similarImages.stream()
                 .collect(Collectors.toList());
     }