(some city's) finest noun phrase informal
The group of people whose job is to make people obey the law and to prevent and solve crime in a specific city.
He has the legal right to use a gun because he's in Hanoi's finest.
He was fined 100 dollars for going out during social distancing order and resisting Ho Chi Minh's finest.
Brooklyn's finest reported that street crime is increasing, so citizens should take extra precautions when going out at night.
The origin of this phrase is not clear.
Seem to be very suspicious or morally unacceptable
This deal stinks to high heaven. Maybe somebody was bribed.