Police have arrested one of their own for criminal acts he allegedly committed while on duty.

Michael Turkington, 35, who joined the San Francisco police five years ago, was arrested Wednesday night at his San Mateo home on suspicion of oral copulation by force, false imprisonment and furnishing marijuana, all "under color of authority," said Lt. Daniel Mahoney.

Mahoney said Turkington allegedly befriended an 18-year-old woman at San Francisco State University, picked her up, drove her to a secluded area and coerced her into performing sex acts.

Turkington, who allegedly committed the acts while assigned to the Taraval station, already was on suspension in connection with separate charges involving contributing to the delinquency of minors, for which a trial is scheduled for Friday, Mahoney said.

Those charges allege that Turkington took two 17-year-old girls and a 16-year-old girl to West Sunset Park on June 30, 2004, and gave them a bottle of vodka and a bottle of Gatorade.
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