Could be that he’s also a copper and its an intelligence gathering exercise to find out how much into the drugs culture you are and whether you are using or dealing
about 20 years ago there was this advert in the London papers
it showed a white copper in uniform running after a black man
it said “what do you see?”
a] a copper hassling an innocent minority?
b] a bobby catching a potential criminal?
but both answers were wrong – it was a bobby and a detective (the black guy) chasing after a third person..