Cousin got scammed on a Tinder date

So yesterday my cousin (21 M), who comes from a small town went on a date with a girl he matched on tinder. They decided to meet at near a restaurant in Karkardooma. After they had their food the girl suggested they take a walk nearby. So they went in the galis behind the restaurant. Few minutes later she gets a call and tells that she has to go back home right away, and just vanishes. My cousin being unfamiliar about the place couldn't figure anything, a minute later 3 guys start hassling him and start a fight. Just about a minute later a policeman arrives, ( who he says looked more like a bouncer). The policeman accuses him of creating nuisance and fighting. The policeman starts threatening him, and says to pay him money or go to jail. The road where they were had a dead end and was extremely quiet and had no crowd. My cousin is a very sinmple guy, and got intimidated easily. He ended up paying 20k to the policeman, who initially asked for 40k. I believe this was all a pre planned setup as the girl stopped picking up his call or responding to his texts after that. Stay safe everybody!!!