(KPIX-TV) Video has been obtained by KPIX 5 showing a BART police officer who repeatedly used a stun gun to subdue a passenger in front of other riders.

A woman who witnessed the incident, who did not want to go on camera, told KPIX 5 the man was harmless and that the officer used the stun gun for no reason.

The video, which was taken on the evening of January 29th, begins with the BART officer giving the man a stern warning on a train at the San Bruno station.

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