This book titled “Supervisory and Municipal Liability in Law Enforcement” was published by
Looseleaf Law Publications, Inc. in April 2019 (www.LooseleafLaw.com/800-647-5547). It was
written to help protect law enforcement supervisors including police chiefs, sheriffs and other
police supervisory officials and their municipalities from civil liability for constitutional rights
violations for failure to properly train, supervise, discipline and hire subordinate officers. The
book explains the legal principles involved in civil rights lawsuits filed pursuant to 42 U.S.C.
§1983 and contains many actual case studies designed to show law enforcement management
officials how they may be vulnerable in the real world of police work. It also offers solid and
practical recommendations to build firewalls to protect against liability.
John M. Callahan Jr., aka “Mike” Callahan had a career in law enforcement that spanned 44
years. He is a graduate of Boston College and Boston College Law School and licensed to
practice law in Massachusetts. He began his law enforcement career as a Special Agent for the
United States Naval Criminal Investigative Service. He transferred to the FBI in 1969 and spent
the next 30 years as an FBI Special Agent, Supervisory Special Agent, and Chief Division Counsel.
During his FBI career he served as an Instructor of Law at the FBI Academy for 3 ½ years and
taught several sessions of the FBINA. He also served as a Special Assistant U.S. Attorney for 3
years in Boston, MA. Mr. Callahan has taught thousands of law enforcement professionals in
matters involving criminal law/procedure; deadly force; and civil liability. He is the author of
three published books in the law enforcement field including two on deadly force (the most
recent is titled “Lethal Force and the Objectively Reasonable Officer” published by Looseleaf Law
in 2015). Mr. Callahan’s DOB is 7/28/43 and he can be reached by email at
mcall0728@comcast.net and phone 617-777-0296.