[AhmedMohamed]

I am using police door system at that link : http://*******/6RvTrD
also I am using CoP system at that link : http://*******/jGn7fE
now, I want to make only Police can open these doors.
How can I do that??

[Beckett]

Either assign a variable to police officers, or for a simple (risky) way restrict cop skins for only Cops, then check if the guy got the cop skin and if true, move the gate, if false, do nothing.