On your way home after drinking 2 glasses of wine, you see red and blue lights from a police cruiser.  He asks you to blow into a PAS (Preliminary Alcohol Screening) device.  Don’t do it!  You have the right to refuse that pre-arrest test – so do so.  Performing the test only helps the police, never you.  If you are then arrested, however, you must take a blood or breath test.  Refusal of this post-arrest test will result in your losing your license for 1 year.