The video is from the corner of Valencia and Duboce.
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RELATED: San Jose police issue nearly 500 citations at sideshow involving 200+ cars
It's unclear if there were any injuries or if anybody was detained, but video shows police moving to break up the event.
On Tuesday in the East Bay, the city of Fremont will consider a plan that takes a new approach to ending illegal car racing and sideshows.
RELATED: OPD chief suspends 2 officers after sideshow, fatal crash that killed bystander
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The proposal would make it illegal to be a spectator at a sideshow.
Currently there are no laws in California that punish people for watching or attending these events, even though street racing and sideshows are illegal in many places.