A San Francisco police officer was arrested on firearms charges, the department said Tuesday.
Officer Thomas Abrahamsen, 50, a Berkeley resident, turned himself in Tuesday and was booked at San Francisco County Jail for one felony count of manufacture of an assault weapon and one felony count of possession of an assault weapon, police said.
The SFPD Internal Affairs Division initiated the investigation last summer based on information gathered from other department members. The investigation revealed that Abrahamsen manufactured and was in possession of an illegal AR-15-style assault rifle and AR-15 receiver components, the department said.
Acting Chief Toney Chaplin said the department will continue to work hard to build and maintain the public's trust.
"In the spirit of the Not on My Watch initiative, department members will continue to hold each other accountable and will act swiftly to report any behavior that might bring dishonor to the Police Department," Chaplin said.
Abrahamsen, an 18-year veteran was placed on unpaid administrative leave.