In May, as another example of states moving ahead of Congress on privacy, Montana became the first state to prohibit state and local law enforcement from obtaining cell-site location data without a warrant (H.B. 603). Following last year’s Supreme Court ruling in U.S. v. Jones requiring a warrant for tracking a car with a GPS device, law enforcement nationwide has turned to the next best thing available without a warrant – cell phones, which transmit their location to cell sites as they move from place to place. Federal courts have split on whether law enforcement can obtain cell-site location data without a warrant. But in Montana, the law now is as clear as its big sky – law enforcement needs a warrant first. This week, Maine enacted similar legislation by overriding the governor’s veto of L.D. 415.