April 7, 2008 (San Dimas, CA) Police-Writers.com is a website that lists state and local police officers who have written books. With the addition of three law enforcement officials, the website now listed 948 state and local law enforcement officials from 397 agencies.  Dr. Stephen Mackenzie has been training and working police service dogs for over 17 years. He is a part time Deputy with the Schoharie County Sheriff's Office (New York).  During his law enforcement career he has served as a K-9 handler for 7 years and K-9 Trainer for 8 years. Stephen Mackenzie is a Trainer/Examiner of police dog teams for the state of New York; an Examiner of police work dog teams for the Connecticut Police Work Dog Association; and a Master Trainer with the North American Police Work Dog Association.  According to the book description of Decoys and Aggression: A Police K-9 Training Manual “A good decoy needs to be an expert in canine communication, and needs to know how to use this language to stimulate aggression in the dog. This book explains, step by step, how to understand the canine paralanguage and how to use your own body to communicate with the dog.” Steven Drielak is a retired Lieutenant from the Suffolk County District Attorney’s Office.  His last assignment was as the commanding officer of the Environmental Crimes Unit. After leaving the Suffolk County District Attorney’s Office, Steven Drielak became the Director, Homeland Security Program, U.S. Environmental Protection Agency.  Steven Drielak is the author of Hot Zone Forensics: Chemical, Biological, and Radiological Evidence Collection and Environmental Crime: Evidence Gathering and Investigative Techniques.  He is also the co-author of Weapons of Mass Destruction: Response and Investigation with Thomas Brandon.  According to the book description of Environmental Crime: Evidence Gathering and Investigative Techniques, “The purpose of this book is to guide the new criminal investigator who is about to enter the highly-regulated and complex field of criminal environmental investigation. This type of criminal investigation has a "steep learning curve." Every hazardous waste evidence-gathering operation is strictly regulated by numerous laws and mandated procedures. This book has been written in a format that will take the new investigator successfully through this learning process.” Tony Capria began his law enforcement career as a police officer in the Syracuse Police Department (New York).  After working in 6 months in patrol, he was assigned as an investigator in the police department's organized crime unit. Tony Capria left law enforcement for a few years to pursue business interests but return in 1976 as a corrections officer at the Jamesville Penitentiary (New York).  Tony Capria moved to the Onondaga County Sheriff’s Office where he took a position as a deputy sheriff in the jail.  He was promoted to sergeant and responsible to supervise a shift of a dozen deputies with custody responsibility for over 200 inmates. Tony Capria left the Onondaga County Sheriff’s Department after an on-duty injury. Tony Capria is the author of Betrayal.  Police-Writers.com now hosts 948 police officers (representing 397 police departments) and their 2014 police books in 34 categories, there are also listings of United States federal law enforcement employees turned authors, international police officers who have written books and civilian police personnel who have written books.