=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/organisationunit/OrganisationUnit.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/organisationunit/OrganisationUnit.java	2014-03-18 08:10:10 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/organisationunit/OrganisationUnit.java	2014-03-24 13:53:21 +0000
@@ -698,16 +698,21 @@
         return map;
     }
 
+    public boolean hasLevel()
+    {
+        return level > 0;
+    }
+    
+    @Override
+    public boolean haveUniqueNames()
+    {
+        return false;
+    }
+
     // -------------------------------------------------------------------------
     // Getters and setters
     // -------------------------------------------------------------------------
 
-    @Override
-    public boolean haveUniqueNames()
-    {
-        return false;
-    }
-
     @JsonProperty
     @JsonView( UuidView.class )
     @JacksonXmlProperty( isAttribute = true, namespace = DxfNamespaces.DXF_2_0 )

=== modified file 'dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java'
--- dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java	2014-03-20 18:48:06 +0000
+++ dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java	2014-03-24 13:53:21 +0000
@@ -147,6 +147,18 @@
     public Grid getTrackedEntityInstances( TrackedEntityInstanceQueryParams params )
     {
         validate( params );
+
+        // ---------------------------------------------------------------------
+        // Verify params
+        // ---------------------------------------------------------------------
+
+        for ( OrganisationUnit organisationUnit : params.getOrganisationUnits() )
+        {
+            if ( !organisationUnit.hasLevel() )
+            {
+                organisationUnit.setLevel( organisationUnitService.getLevelOfOrganisationUnit( organisationUnit.getId() ) );
+            }
+        }
         
         // ---------------------------------------------------------------------
         // If params of type query and no attributes or filters defined, use
@@ -276,8 +288,6 @@
                     throw new IllegalQueryException( "Organisation unit does not exist: " + orgUnit );
                 }
                 
-                organisationUnit.setLevel( organisationUnitService.getLevelOfOrganisationUnit( organisationUnit.getId() ) );
-                
                 params.getOrganisationUnits().add( organisationUnit );
             }
         }