Stricter laws aiming to crack down on drunk driving go into effect at midnight tonight. Act 288, passed earlier this year by the state legislature and signed into law by Gov. Jindal, increases the penalty for refusal to submit to a breathalyzer test to a mandatory one-year driver's license suspension (up from the current six month suspension). Suspects who refuse more than one test within a five-year period face a two year suspension of their license.