As debates about defunding US police forces continue, this book offers an enlightening historical overview of one of the largest metropolitan contingents: the New York City Police Department.   The NYPD is America's largest and most celebrated law enforcement agency. This book examines the history of policing in New York City, from colonial days and the formation of the NYPD at the turn of the twentieth century, through 1930s battles with the Mafia to the Zero Tolerance of the 1990s. Jules Stewart explores political influence, corruption, reform, and community relations through stories of the NYPD's commissioners and the visions they had for the force and the city, as well as at the level of cops on the beat. This book is an indispensable chronicle for anyone interested in policing and the history of New York.