Report: THC Limits Not Correlated To Driving Impairment

The presence of THC in blood is not correlated with driving performance and is not a reliable indicator of psychomotor impairment, according to recommendations made by a state-appointed traffic safety task force. A report issued by the Michigan Impaired Driving Safety Commission finds that peak THC blood levels are not associated with maximal behavioral impairment and further finds that the compound’s influence upon driving performance varies significantly among individual consumers. ...

Google's Sensorvault Can Tell Police Where You've Been

Do you know where you were five years ago? Did you have an Android phone at the time? It turns out Google might know—and it might be telling law enforcement. […] The data Google is turning over to law enforcement is so precise that one deputy police chief said it “shows the whole pattern of life.” It’s collected even when people aren’t making calls or using apps, which means it can be even more detailed than data generated by cell towers. ...