diff --git a/config/alfresco/bulk-import-context.xml b/config/alfresco/bulk-import-context.xml
index 285d0a50e7..f1ebeaa955 100644
--- a/config/alfresco/bulk-import-context.xml
+++ b/config/alfresco/bulk-import-context.xml
@@ -46,7 +46,7 @@
     <property name="metadataLoader"  ref="bfsiMetadataLoader" />
     <property name="importStatus"    ref="bfsiStatus" />
     <property name="importFilters"   ref="bfsiImportFilters" />
-    <property name="dictionaryService"   ref="dictionaryService" />
+    <property name="nameChecker"   ref="nameChecker" />
   </bean>
   
   <bean id="abstractNodeImporterFactory" class="org.alfresco.repo.bulkimport.impl.AbstractNodeImporterFactory" abstract="true">
diff --git a/config/alfresco/core-services-context.xml b/config/alfresco/core-services-context.xml
index a272162a48..f604ca354a 100644
--- a/config/alfresco/core-services-context.xml
+++ b/config/alfresco/core-services-context.xml
@@ -1389,4 +1389,8 @@
    
    <bean id="defaultImageResolver" class="org.alfresco.util.DefaultImageResolver" />
    
+   <bean id="nameChecker" class="org.alfresco.repo.dictionary.constraint.NameChecker">
+      <property name="dictionaryService" ref="dictionaryService" />
+   </bean>
+
 </beans>
diff --git a/config/alfresco/subsystems/Synchronization/default/default-synchronization-context.xml b/config/alfresco/subsystems/Synchronization/default/default-synchronization-context.xml
index 99dcb48771..f9a5290c26 100644
--- a/config/alfresco/subsystems/Synchronization/default/default-synchronization-context.xml
+++ b/config/alfresco/subsystems/Synchronization/default/default-synchronization-context.xml
@@ -77,6 +77,7 @@
         <property name="allowDeletions">
             <value>${synchronization.allowDeletions}</value>
         </property>
+        <property name="nameChecker" ref="nameChecker" />
     </bean>
 
 
diff --git a/source/java/org/alfresco/repo/bulkimport/impl/DirectoryAnalyserImpl.java b/source/java/org/alfresco/repo/bulkimport/impl/DirectoryAnalyserImpl.java
index aa10103aaf..f575291fbb 100644
--- a/source/java/org/alfresco/repo/bulkimport/impl/DirectoryAnalyserImpl.java
+++ b/source/java/org/alfresco/repo/bulkimport/impl/DirectoryAnalyserImpl.java
@@ -34,23 +34,16 @@ import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.alfresco.error.AlfrescoRuntimeException;
 import org.alfresco.repo.bulkimport.AnalysedDirectory;
 import org.alfresco.repo.bulkimport.DirectoryAnalyser;
 import org.alfresco.repo.bulkimport.ImportFilter;
 import org.alfresco.repo.bulkimport.ImportableItem;
 import org.alfresco.repo.bulkimport.ImportableItem.FileType;
 import org.alfresco.repo.bulkimport.MetadataLoader;
-import org.alfresco.service.cmr.dictionary.Constraint;
-import org.alfresco.service.cmr.dictionary.ConstraintDefinition;
+import org.alfresco.repo.dictionary.constraint.NameChecker;
 import org.alfresco.service.cmr.dictionary.ConstraintException;
-import org.alfresco.service.cmr.dictionary.DictionaryService;
-import org.alfresco.service.namespace.NamespaceService;
-import org.alfresco.service.namespace.QName;
-import org.alfresco.util.PropertyCheck;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.springframework.beans.factory.InitializingBean;
 import org.springframework.extensions.surf.exception.PlatformRuntimeException;
 import org.springframework.extensions.surf.util.ISO8601DateFormat;
 
@@ -61,7 +54,7 @@ import org.springframework.extensions.surf.util.ISO8601DateFormat;
  * @since 4.0
  * 
  */
-public class DirectoryAnalyserImpl implements DirectoryAnalyser, InitializingBean
+public class DirectoryAnalyserImpl implements DirectoryAnalyser
 {
     private final static Log log = LogFactory.getLog(DirectoryAnalyserImpl.class);
     
@@ -70,50 +63,25 @@ public class DirectoryAnalyserImpl implements DirectoryAnalyser, InitializingBea
     private MetadataLoader metadataLoader;
     private BulkImportStatusImpl importStatus;
     private List<ImportFilter> importFilters;
-    private DictionaryService dictionaryService;
-    private Constraint filenameConstraint;
+    private NameChecker nameChecker;
+
     
     public DirectoryAnalyserImpl(MetadataLoader metadataLoader, BulkImportStatusImpl importStatus, List<ImportFilter> importFilters,
-            DictionaryService dictionaryService)
+            NameChecker nameChecker)
     {
         this.metadataLoader = metadataLoader;
         this.importStatus = importStatus;
         this.importFilters = importFilters;
-        this.dictionaryService = dictionaryService;
+        this.nameChecker = nameChecker;
     }
     
     public DirectoryAnalyserImpl()
     {
     }
     
-    public DictionaryService getDictionaryService()
+    public void setNameChecker(NameChecker nameChecker)
     {
-        return dictionaryService;
-    }
-
-    public void setDictionaryService(DictionaryService dictionaryService)
-    {
-        this.dictionaryService = dictionaryService;
-    }
-
-    /**
-     * Loads filename constraint from dictionary
-     */
-    public void afterPropertiesSet() throws Exception
-    {
-        PropertyCheck.mandatory(this, "dictionaryService", dictionaryService);
-
-        QName qNameConstraint = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, "filename");
-        ConstraintDefinition constraintDef = dictionaryService.getConstraint(qNameConstraint);
-        if (constraintDef == null)
-        {
-            throw new AlfrescoRuntimeException("Constraint definition does not exist: " + qNameConstraint);
-        }
-        filenameConstraint = constraintDef.getConstraint();
-        if (filenameConstraint == null)
-        {
-            throw new AlfrescoRuntimeException("Constraint does not exist: " + qNameConstraint);
-        }
+        this.nameChecker = nameChecker;
     }
 
 	public void setMetadataLoader(MetadataLoader metadataLoader)
@@ -205,7 +173,7 @@ public class DirectoryAnalyserImpl implements DirectoryAnalyser, InitializingBea
             {
                 try
                 {
-                    filenameConstraint.evaluate(file.getName());
+                    nameChecker.evaluate(file.getName());
                 }
                 catch (ConstraintException e)
                 {
diff --git a/source/java/org/alfresco/repo/security/sync/ChainingUserRegistrySynchronizer.java b/source/java/org/alfresco/repo/security/sync/ChainingUserRegistrySynchronizer.java
index 2f28d84ef2..639a5cf420 100644
--- a/source/java/org/alfresco/repo/security/sync/ChainingUserRegistrySynchronizer.java
+++ b/source/java/org/alfresco/repo/security/sync/ChainingUserRegistrySynchronizer.java
@@ -56,6 +56,7 @@ import org.alfresco.model.ContentModel;
 import org.alfresco.repo.admin.SysAdminParams;
 import org.alfresco.repo.batch.BatchProcessor;
 import org.alfresco.repo.batch.BatchProcessor.BatchProcessWorker;
+import org.alfresco.repo.dictionary.constraint.NameChecker;
 import org.alfresco.repo.lock.JobLockService;
 import org.alfresco.repo.lock.LockAcquisitionException;
 import org.alfresco.repo.management.subsystems.ActivateableBean;
@@ -207,7 +208,10 @@ public class ChainingUserRegistrySynchronizer extends AbstractLifecycleBean
 
     /** Allow a full sync to perform deletions? */
     private boolean allowDeletions = true;
-    
+
+    /** Validates person names over cm:filename constraint **/
+    private NameChecker nameChecker;
+
     private SysAdminParams sysAdminParams;
     
     public void init()
@@ -222,6 +226,14 @@ public class ChainingUserRegistrySynchronizer extends AbstractLifecycleBean
         PropertyCheck.mandatory(this, "sysAdminParams", sysAdminParams);
     }
 
+    /**
+     * Sets name checker
+     */
+    public void setNameChecker(NameChecker nameChecker)
+    {
+        this.nameChecker = nameChecker;
+    }
+
     /**
      * Sets the application context manager.
      * 
@@ -1813,6 +1825,8 @@ public class ChainingUserRegistrySynchronizer extends AbstractLifecycleBean
                 // Make a mutable copy of the person properties, since they get written back to by person service
                 HashMap<QName, Serializable> personProperties = new HashMap<QName, Serializable>(person.getProperties());
                 String personName = (String) personProperties.get(ContentModel.PROP_USERNAME);
+                // for invalid names will throw ConstraintException that will be catched by BatchProcessor$TxnCallback
+                nameChecker.evaluate(personName);
                 Set<String> zones = ChainingUserRegistrySynchronizer.this.authorityService
                         .getAuthorityZones(personName);
                 if (zones == null)