diff --git a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
index b4c507231b..341bd7e041 100644
--- a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
@@ -1221,24 +1221,23 @@ namespace OpenSim.Region.CoreModules.World.Permissions
             return IsAdministrator(user);
         }
 
-        private bool CanDuplicateObject(int objectCount, UUID objectID, UUID userID, Scene scene, Vector3 objectPosition)
+        private bool CanDuplicateObject(SceneObjectGroup sog, ScenePresence sp, Scene scene)
         {
             DebugPermissionInformation(MethodInfo.GetCurrentMethod().Name);
             if (m_bypassPermissions) return m_bypassPermissionsValue;
 
-            SceneObjectGroup sog = scene.GetGroupByPrim(objectID);
-            if (sog == null)
+            if (sog == null || sog.IsDeleted || sp == null || sp.IsDeleted)
                 return false;
 
-            uint perms = GetObjectPermissions(userID, sog, false);
+            uint perms = GetObjectPermissions(sp, sog, false);
             if((perms & (uint)PermissionMask.Copy) == 0)
                 return false;
 
-            if(sog.OwnerID != userID && sog.OwnerID != sog.GroupID && (perms & (uint)PermissionMask.Transfer) == 0)
+            if(sog.OwnerID != sp.UUID && sog.OwnerID != sog.GroupID && (perms & (uint)PermissionMask.Transfer) == 0)
                 return false;
 
             //If they can rez, they can duplicate
-            return CanRezObject(objectCount, userID, objectPosition, scene);
+            return CanRezObject(0, sp.UUID, sog.AbsolutePosition, scene);
         }
 
         private bool CanDeleteObject(UUID objectID, UUID userID, Scene scene)
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
index a7f3dd7901..3e75c8ae10 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
@@ -47,7 +47,7 @@ namespace OpenSim.Region.Framework.Scenes
     public delegate bool TakeObjectHandler(SceneObjectGroup sog, ScenePresence sp);
     public delegate bool SellGroupObjectHandler(UUID userID, UUID groupID, Scene scene);
     public delegate bool TakeCopyObjectHandler(SceneObjectGroup sog, ScenePresence sp);
-    public delegate bool DuplicateObjectHandler(int objectCount, UUID objectID, UUID owner, Scene scene, Vector3 objectPosition);
+    public delegate bool DuplicateObjectHandler(SceneObjectGroup sog, ScenePresence sp, Scene scenen);
     public delegate bool EditObjectByIDsHandler(UUID objectID, UUID editorID, Scene scene);
     public delegate bool EditObjectHandler(SceneObjectGroup sog, ScenePresence sp);
     public delegate bool EditObjectInventoryHandler(UUID objectID, UUID editorID, Scene scene);
@@ -392,15 +392,20 @@ namespace OpenSim.Region.Framework.Scenes
         #endregion
 
         #region DUPLICATE OBJECT
-        public bool CanDuplicateObject(int objectCount, UUID objectID, UUID owner, Vector3 objectPosition)
+        public bool CanDuplicateObject(SceneObjectGroup sog, UUID agentID)
         {
             DuplicateObjectHandler handler = OnDuplicateObject;
             if (handler != null)
             {
+                if(sog == null || sog.IsDeleted)
+                    return false;
+                ScenePresence sp = m_scene.GetScenePresence(agentID);
+                if(sp == null || sp.IsDeleted)
+                    return false;
                 Delegate[] list = handler.GetInvocationList();
                 foreach (DuplicateObjectHandler h in list)
                 {
-                    if (h(objectCount, objectID, owner, m_scene, objectPosition) == false)
+                    if (h(sog, sp, m_scene) == false)
                         return false;
                 }
             }
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index fc1369272e..9264138af5 100755
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -2066,8 +2066,7 @@ namespace OpenSim.Region.Framework.Scenes
             SceneObjectGroup original = GetGroupByPrim(originalPrimID);
             if (original != null)
             {
-                if (m_parentScene.Permissions.CanDuplicateObject(
-                    original.PrimCount, original.UUID, AgentID, original.AbsolutePosition))
+                if (m_parentScene.Permissions.CanDuplicateObject(original, AgentID))
                 {
                     SceneObjectGroup copy = original.Copy(true);
                     copy.AbsolutePosition = copy.AbsolutePosition + offset;
diff --git a/OpenSim/Region/OptionalModules/PrimLimitsModule/PrimLimitsModule.cs b/OpenSim/Region/OptionalModules/PrimLimitsModule/PrimLimitsModule.cs
index 9c0fa7577d..4875a615f6 100644
--- a/OpenSim/Region/OptionalModules/PrimLimitsModule/PrimLimitsModule.cs
+++ b/OpenSim/Region/OptionalModules/PrimLimitsModule/PrimLimitsModule.cs
@@ -106,6 +106,7 @@ namespace OpenSim.Region.OptionalModules
 
         private bool CanRezObject(int objectCount, UUID ownerID, Vector3 objectPosition, Scene scene)
         {
+            
             ILandObject lo = scene.LandChannel.GetLandObject(objectPosition.X, objectPosition.Y);
 
             string response = DoCommonChecks(objectCount, ownerID, lo, scene);
@@ -119,15 +120,16 @@ namespace OpenSim.Region.OptionalModules
         }
 
         //OnDuplicateObject
-        private bool CanDuplicateObject(int objectCount, UUID objectID, UUID ownerID, Scene scene, Vector3 objectPosition)
+        private bool CanDuplicateObject(SceneObjectGroup sog, ScenePresence sp, Scene scene)
         {
+            Vector3 objectPosition = sog.AbsolutePosition;
             ILandObject lo = scene.LandChannel.GetLandObject(objectPosition.X, objectPosition.Y);
 
-            string response = DoCommonChecks(objectCount, ownerID, lo, scene);
+            string response = DoCommonChecks(sog.PrimCount, sp.UUID, lo, scene);
 
             if (response != null)
             {
-                m_dialogModule.SendAlertToUser(ownerID, response);
+                m_dialogModule.SendAlertToUser(sp.UUID, response);
                 return false;
             }
             return true;