License plate readers like the ones pictured are among the many types of surveillance technology used by Bay Area law enforcement.

Why Law Enforcement Should Publicize Surveillance Policies, Procedures

OPINION Most of the time, the video cameras we walk past every day are innocuous fixtures in the background. But because they’re so prevalent, when law enforcement officials gain access, webs of security cameras can be used as surveillance networks to monitor the everyday behavior of a massive number of city residents – and in many cases, the public would know little to nothing about it.  Read more