BART is investigating whether one of its police officers acted properly when he slammed a female passenger to the floor of a train at the Pittsburg/Bay Point Station, an encounter captured on video and posted online.

(See the video above, which the person who captured the footage titled “BART police abuse.”)

Some witnesses said the woman, whose name wasn’t released, had done nothing to warrant being taken to the ground. But BART police said the woman had resisted arrest after being seen by other passengers acting erratically.

The incident happened about 9:30 p.m. Sept. 10. BART police were called to investigate reports that the woman was banging on train windows and trying to force open the doors, police said. An officer found the woman, who appeared to be passed out, on an SFO-bound train.

“The officer determined that the woman was intoxicated in public, and he attempted to place her under arrest,” according a police log entry. “The woman resisted being arrested, and additional BART and Contra Costa County sheriff’s deputies responded to assist.”

Paramedics at the scene believed she was under the influence of alcohol and methamphetamine. She was medically cleared at a county hospital and then booked at Contra Costa County Jail in Martinez on suspicion of public intoxication and resisting arrest.

All incidents in which officers use force are reviewing by Chief Kenton Rainey.

BART spokeswoman Alicia Trost said Tuesday that she has also forwarded videos of the incident to BART’s Office of the Independent Police Auditor. The name of the officer involved wasn’t released.

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