What we only found is that Zombie Squad was a department of the LAPD in the film Cobra (1986), starring Sylvester Stallone. It is where officers are tasked with criminals considered too violent or unpredictable for regular police.
The Zombie Squad, however, is also considered a "dumping ground" for officers considered too extreme for a department increasingly besieged by politics.
You know all about your local police force, the FBI, and other familiar law enforcement offices. The federal government operates lots of other police forces that don't get quite the same publicity on TV and movies; you might be surprised to learn that up until 2003, the Library of Congress had its own police!
Here are a few of the specialized police forces you might not have even known were protecting you shared by Mentalfloss.com.