I recently read in a national newspaper that NJ will begin to prosecute accidents with tiredness or drowsyness as a punishable cause,Now how do you prove that?I can't think of a representative test (such as a breathalizer for etoh )that can prove or disprove fatigue.Plus if you were just in an accident your fight or flight response will be in full force!Wide eyed, and not drowsy anymore.The idea is a noble one but down the slippery slope we go.