By Justin Jouvenal
Is PredPol the 'holy grail' of crime prevention or are its secret algorithims targeting civil liberties and minority groups?
Sergeant Charles Coleman popped out of his police SUV and scanned a trash-strewn street popular with the city's homeless, responding to a crime that hadn't yet happened. It wasn't a 911 call that brought the Los Angeles Police Department officer to this spot, but a whirring computer crunching years of crime data to arrive at a prediction: a car theft or burglary would probably occur near here on this particular morning.