This is an alphabetical listing of police officers, state troopers, deputy sheriffs and other law enforcement officials who have authored book.  You can also view the list of law enforcement agencies by state, here;  Or, the list of agencies alphabetically, here; Or, use any of the navigation links about to take you to topics, international and federal police officers.

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Jacquelyn MacConnell, Phoenix Police Department
Stephen Mackenzie, Schoharie County Sheriff's Office
John Mackie, New York Police Department
John Madinger, Oklahoma Bureau of Narcotics and Dangerous Drugs
Sal Maggio, New Jersey State Police
George F. Maher, Nassau County Police Department
Dan Mahoney, New York Police Department
Philip Mahony, New York City Police Department
William Majeski, New York City Police Department
Jim Malloy, San Diego Police Department
Gene Maloney, New York Police Department
John Manca, New York Police Department
Michael F. Mangiaracina, Yolo County Sheriff Coroner
Nick Mangieri, Palmer Police Department
James Manning, New York Police Department
Terry J. Manwaring, Jefferson County Sheriff's Office
Jack Maple, New York Police Department
Dan Marcou, La Crosse Police Department
Benny Mares, Los Angeles Police Department
Cliff Mariani, New York Police Department
Matthew Marin, Houston Police Department
John A. Marlo, San Jose Police Department
Peter Mars, Kennebec County Sheriff's Office
Bobby R. Marshall, Los Angeles Police Department
Evan Marshall, Detroit Police Department
Dennis Marsili, New Kensington Police Department
Frederick T. Martens, New Jersey State Police
Randy Martin, Chicago Police Department
Raymond V. Martin, New York Police Department
Robert Martin, Lower Township Police Department
Louis Enrique Martinez, Chicago Police Department
Barry Mason, Cobb County Police Department
Dexter H. Mast, Oakland Police Department
Adam Matkowsky, Los Angeles Police Department
George Matsell, New York Police Department
John Matthews, Dallas Police Department
Kendall Matthews, New York Police Department
Stephen Mattice, Columbus Police Department (Kansas)
D. Clayton Mayes, Downey Police Department
Michael Maxwell, Los Angeles County Sheriff's Department
Wesley D. McBride, Los Angeles County Sheriff's Department
Ronald M. McCarthy, Los Angeles Police Department
William McCarthy, New York Police Department
Harold McCormick, Suffolk County Police Department
Dorothy McCoy, South Carolina State Constables
William J. McCullough, New York Police Department
Alex J. McDonald, Broward County Sheriff's Office
Alfred F. McDonald, Buffalo Police Department
Cherokee Paul McDonald, Fort Lauderdale Police Department
Steven McDonald, New York Police Department
Leigh McEachern, Orange County Sheriff's Department (Florida)
James McEachin, Hackensack Police Department
David McElligott, New York State Police
Michael McGarrity, Santa Fe County Sheriff's Department
Dennis J. McGowan, Suffern Police Department
Robert McGuire, New York City Police Department
Gerry Mackey, Miami Beach Police Department
Chris McDonough, Oceanside Police Department
Thomas McKenna, New York Police Department
Joe McKinney, San Antonio Police Department
Isaiah McKinnon, Detroit Police Department
Jack McLamb, Phoenix Police Department
John E. McLaughlin, Philadelphia Police Department
Ovid John McLaughlin, Toledo Police Department
Robert McLaughlin, New York Police Department
Vance McLaughlin, Savannah Police Department
Larry McMicking, New York State Police
Joseph D. McNamara, San Jose Police Department
Mel McNairy, Indianapolis Police Department
Mike McNeff, Arizona Department of Public Safety
Jim McNeff, Fountain Valley Police Department
Robert McNeilly, Jr., Pittsburgh Bureau of Police
George W. McWatters, New York Police Department
Kevin Means, San Diego Police Department
Craig Meissner, New York City Police Department
Terry Lee Melancon, Jr., Baton Rouge Police Department
Ryan Melsky, Clinton Township Police Department
C.J. Messina, New York City Police Department
Wayne Meyer, Kennewick Police Department
Elvin Miali, Fountain Valley Police Department
Tony Miano, Los Angeles County Sheriff's Department
Rick Michelson, Grossmont – Cuyamaca Community College District Police Department
Michael Middleton, Los Angeles Police Department
Jim Middleton, San Antonio Police Department
Eli J. Miletich, Duluth Police Department
John "Jack" Miller, Nevada State Gaming Control Board
R. Gregg Miller, Los Angeles Police Department
Rick Miller, Denton Police Department
Jerry Minton, Los Angeles Police Department
Greg Miraglia, Napa Valley Railroad Police Department
Robert Mladinich, New York Police Department
James P. Mock, Torrance Police Department
Neil Moloney, Port of Seattle Police Department
Howard A. Monta, Seattle Police Department
Mike Monte, Wisconsin Police Department
Douglas John Moore, Bangor Police Department
Laurie Moore, Tarrant County Constables
Shane Moore, Gillespie Police Department
Charles Moose, Montgomery County Police Department
John Moran, New York City Police Department
Scott R. Morales, Fort Wayne Police Department
David W. Moran, Massachusetts State Police Department
O.J. Moravek, Newark Police Department
John Moreno, New York Police Department
Tony Moreno, Los Angeles Police Department
J.P. Morgan, New York City Police Department
Robert Morrill, Monterey Park Police Department
Grady E. Morrison, Baltimore Police Department
John Morrison, San Diego Police Department
Scott Morrison, Fresno County Sheriff's Department
Bob Morrissey, Toledo Police Department
Frederick Morton, New Orleans Police Department
Sam Morton, Richland County Sheriff’s Department
Peter Moskos, Baltimore Police Department
Steven D. Moss, San Diego Police Department
Ralph Mroz, Leverett Police Department
Wayne Allen Mulholland, California Highway Patrol
Jack Mullen, San Diego Police Department
Kevin J. Mullen, San Francisco Police Department
Jack Muller, Chicago Police Department
Charlie Munson, Lavaca County Sheriff's Department
Vincent Murano, New York Police Department
Jeremy A. Muraski, Green Bay Police Department
Larry Murphy, Oakland Police Department
Patrick V. Murphy, New York Police Department
Bryan Muth, Phoenix Police Department
Anna Mydlarz, Buffalo Police Department
Mark Mynheir, Palm Bay Police Department