Civil rights groups say San Francisco police used security cameras to spy on demonstrators

SAN FRANCISCO - Civil rights groups have gone to court in their effort to stop San Francisco police from using private security cameras.

The ACLU, the Electronic Frontier Foundation and other groups filed a brief in a federal appeals court on Monday, claiming that San Francisco police two years ago used a network of 300 security cameras in Union Square to spy on demonstrators who were protesting the police killing of George Floyd in Minnesota.

Recently, a lower court ruled in favor of the police and their use of security cameras.