Sure there might be a few bad apples in your organization. Figure out who they are and deal with them. Don’t create or maintain policies that communicate to employees that they are incompetent, untrustworthy, and not worthy of respect.
Check out this Forbes article by Liz Ryan about 10 policy stinkers that some organizations still have on the books and actually enforce. She argues that it’s time for them to be ripped from employee handbooks everywhere.