Where NYPD cop may put perp, clearly! (2,5,3,5)
I believe the answer is:
in black and white
'clearly' is the definition.
I can't explain the rest of the clue.
(Other definitions for in black and white that I've seen before include "committed to paper" , "Most films are no longer" , "explicit" , "How extreme viewpoints are" , "fundamentalist way of viewing things?" .)