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Mike Callahan

The Objectively Reasonable Officer

John Michael Callahan served in law enforcement for 44 years. His career began as a special agent with NCIS. He became an FBI agent and served in the FBI for 30 years, retiring in the position of supervisory special agent/chief division counsel. He taught criminal law/procedure at the FBI Academy. After the FBI, he served as a Massachusetts Deputy Inspector General and is currently a deputy sheriff for Plymouth County, Massachusetts. He is the author of two published books on deadly force and an upcoming book on supervisory and municipal liability in law enforcement.

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Court ruled that a jury may find that participating officers used unconstitutional excessive force during the execution of the warrant
Court rules that jury could find officer’s application of a knee to a mentally ill subject’s back beyond that necessary to control him
An Ark. officer’s actions come under legal scrutiny as the Eighth Circuit Court revives a lawsuit concerning the 2016 shooting of a suicidal teenager
The defendant officer was initially denied qualified immunity after fatally shooting a violent subject
Recruiting and operating organized crime gang members and bosses as long-term confidential criminal informants is a dangerous game for law enforcement officers
The court ruled that self-defense jury instruction that treated the officer like an ordinary citizen was erroneous
Dissenting judge highly critical of fellow judges concluding: “the rule of law [they treat] as clearly established … could well make the difference in whether officers like Agdeppa and Rodriguez make it out of a violent altercation alive.”
The suspect, who was armed with a 13” knife, was stopped and shot by officers on his way to kill police officers at random
The appellate court was critical of the officer’s decision to enter a suspect’s vehicle, which resulted in the shooting death of the driver and a second officer being struck twice by the vehicle
Federal judge overturns $1.2M civil rights jury verdict against City of Indianapolis