An investigation into allegations of sexual assault made last year against an off-duty San Francisco police officer found insufficient evidence for a sexual assault charge, but did result in other charges, police said.
Officer Jason Lai was charged Wednesday with two misdemeanor counts of unlawful possession of local criminal offender history information and four misdemeanor counts of misuse of confidential Department of Motor Vehicles information, police said.
Police began an investigation into Lai in August of 2015, after a woman told officers at San Francisco General Hospital's Rape Trauma Center that he had sexually assaulted her.
Investigators working with the District Attorney's Office determined there was insufficient evidence for a sexual assault charge, but probable cause for the other charges announced Wednesday, police said.
In an affidavit filed with a search warrant last year, police said Lai and the victim had gone out. They drank heavily, and Lai told investigators he could not remember if they had sex. The victim, however, told investigators he had pinned her down and raped her even after she said no.
Lai has been on unpaid leave since the investigation began, police said.
A second officer, identified in the affidavit last year as Lt. Curtis Liu, was also accused of interfering in the investigation by tipping Lai off about the sexual assault allegations.
Police on Wednesday said that investigation is still open and ongoing, but that officer has since left the department.