Preliminary Alcohol Screen (PAS ) Test F.A.Q.

One question I am often asked is whether a driver has the right to
refuse to take the roadside Preliminary Alcohol Screen (PAS) test
after being pulled over for suspected driving under the influence of
alcohol (DUI).  Vehicle Code section 23612 authorizes the arresting
officer to use the handheld PAS device to determine the level of
alcohol in a driver’s blood.  However, this statute also states that
the PAS test is voluntary.