Last week, Fixing Our City probed whether giving police greater access to live monitoring of private security cameras has been a useful crime-fighting strategy. Now, we hear from privacy advocates who warn that any new surveillance capacity has the potential to be abused, and who also hold that it doesn’t actually work to reduce crime. A former beat cop cautions that cameras aren’t perfect witnesses. But those closest to the camera networks in question emphasize that the equipment does a good job capturing evidence, and the footage is in high demand. | Unlimited Chronicle access: sfchronicle.com/pod

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