Hi does anyone know or have the cuffing script where you type in /cuff [playerid]? Thanks in advance 
not too sure about it but, you may be after something like this?
https://github.com/cody196/FiveReborn---MultiFive-Real-Life-Roleplay-Server/tree/master/resources/arrest
If you hope on discord https://discord.gg/dENT7Wa and ask mr.scammer he can try and give you some insight of how you can get a hold of one.