[Ads-l] officer-involved shooting (1972)

[dave@wilton.net]

Not in OED.
 
It appears to have started as an internal jargon term in Los Angeles-area police departments.
 
Leppard, Stan. “L.B. Detectives Hunt Killers.” Independent Press-Telegram (Long Beach, California), 2 July 1972, B12/2. Newspapers.com.

"Do Long Beach homicide detectives have any function other than the investigation of murder?

“'A FEW,' Hurlbirt said, 'Such as cases involving attempted murder, officer-involved shootings, mayhem, assault with a deadly weapon, kidnaping, illegal abortion, wife beating, child beating, battery on police officers, common assaults, firing into an inhabited dwelling, and drawing and exhibiting a firearm in a rude and threatening manner.'”
 
By 1977, it, and the initialism OIS, was being used as the official name of an LAPD police unit:
 
Hazlett, Bill. “Special LAPD Teams Track Police Bullets.” Los Angeles Times, 23 January 1977, A3/2. ProQuest Historical Newspapers.

“'Every shot fired by a police officer that results in death or injury is our direct responsibility,' said Det. Lt. Charles Higbie, who heads LAPD’s Officer Involved Shooting (OIS) team."
 
The earliest non-LA use of the term that I've found is from Las Vegas in 1979:
 
Weiss, Clyde. “Record Number of Homicides Plaguing Police.” Las Vegas Review-Journal (Nevada), 25 March 1979, 3A/1. Readex: America’s Historical Newspapers.

"The bloody numbers have shocked the Las Vegas community and staggered the Metropolitan Police Department.

"After Tuesday’s drug-related gun battle and officer-involved shooting that left three men dead, the violent death tally had risen to 25 reported homicides this year—a record."
 
Almost all of the 20th-century uses I've found are in reference to either Los Angeles or Las Vegas. Widespread adoption of the phrase, according the Corpus of Contemporary American English dates from 2010.

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