Police secretly monitored New Orleans with facial recognition cameras

Douglas MacMillan and Aaron Schaffer report:

For two years, New Orleans police secretly relied on facial recognition technology to scan city streets in search of suspects, a surveillance method without a known precedent in any major American city that may violate municipal guardrails around use of the technology, an investigation by The Washington Post has found.

Police increasingly use facial recognition software to identify unknown culprits from still images, usually taken by surveillance cameras at or near the scene of a crime. New Orleans police took this technology a step further, utilizing a private network of more than 200 facial recognition cameras to watch over the streets, constantly monitoring for wanted suspects and automatically pinging officers’ mobile phones through an app to convey the names and currentlocations of possible matches.