Criminal Investigations & Forensic Science

Street gangs, prison gangs and biker gangs -- made up of every kind of criminal, from vandals and drug dealers to the most violent predators -- present an espec

Over the past several decades, there has been a continuous and growing focus on street gangs, outlaw motorcycle gangs, and domestic extremist groups. Many of th

Throughout the history of the United States, gangs have existed in one form or another, from the violent thugs of old New York to the holdup gangs of the Old We

This is a print on demand edition of a hard to find publication. Between 1980 and the mid-1990s, the number of specialized gang units (SGU) in law enforcement a