Ye maybe just do that nightstick dont do any damage and then is ok...
I think that you should report that to the QA team not here because it's a bug I think! This is the QA team board: http://cit2.net/forum/index.php?board=233.0
I suggest that nighstick should not do any damage , this will serve the purpose and prevent absue.
-1 for me because cops might go using nightstick while using 'F' as abuse