Luciano Ercoli, a director no doubt familiar to giallo fans, brings the world a procedure heavy crime film that capture the political concerns of the day including terrorism, political extremism and corruption.
Possibly more comparable to the work of Damiani than to Lenzi or Di Leo the ultimate appeal of this film will no doubt be to those with more of an interest in process and investigation rather than car chases and gun battles.
This is not to say that Killer Cop is completely devoid of action. There are indeed action sequences including a number of bombings. However action is used sparingly and not used as an alternative to a good strong story.
The Stelvio Cipriani score is perfect for the genre and at times reminiscent of the music for Bava's Rabid Dogs.