This Rebel Breed.

To combat the problem of drug-dealing juvenile delinquents operating in racial gangs, two recent police academy graduates are sent to a local high school, posing as students. [Initially released in theaters in 1960 as "This Rebel Breed", it was re-released as "The Black Rebels" five years later, re-edited with the addition of a handful of dialogue-free scenes of youths making out in a bedroom, with partial female nudity.]