The Oregon Legislature considers asking voters if sobriety checkpoints should be put back in use to reduce drunken driving. State Representative Andy Olson, a former State Trooper, says sobriety checkpoints deter driving under the influence and save lives. He says currently there are 39 states that allow checkpoints. Robert Holman with the Oregon Criminal Defense Lawyers Association is concerned the rules about checkpoints aren't clearly defined. He fears police will use the checkpoint to sniff out evidence of other crimes without probably cause. The Oregon Supreme Court ruled the random checkpoints unconstitutional in 1987.