Prevent user from mistaken delete document

From: zamria@nc.com.my
Category: Category 1
Date: 08 Sep 1998
Time: 03:11:38
Remote Name: 202.184.177.150

Comments

How to prevent/notify user from being delete an important document even he have permission to delete in ACL. Sometime user are mistaken delete a wrong document. Hope somebody can help.

T.Q