"Blood and the Badge" by Michael Cannell is the tale of two NYPD officers who were paid to provide information and even kill for the Mob.
So does the Mob as described in your book still exist? I rode around Bensonhurst with a former Colombo family hitman, and I asked him that question and expected him to say "No." But to my surprise ...
Organized crime does its business in spite of law enforcement's efforts to curb those dirty deeds. But what if rogue cops were paid off to help criminals with their exploits? Or even kill for them?