When you have been arrested for suspicion of driving under the influence of alcohol under California Vehicle Code §23152, you will be asked to submit to a Preliminary Alcohol Screening Test.
The Preliminary Alcohol Screening Test, or the PAS Test, is a breath test that is given at the scene of the potential arrest. What many people do not know is that this test is voluntary. You are not required to take it. Many times people are not informed that it is voluntary, or in an effort to cooperate and wanting to please officers, people will submit to it.
There are some pros and cons to taking this test. It is not always recommended that you refuse to take it or that you take it.