One of the most frequent questions, when it comes to a DUI, is “should you blow?” or otherwise submit to a breath test. When pulled over and the officer suspects you of driving under the influence, he may ask you to submit to a breath test. In the event you refuse, your license could be suspended from 90 days to one year. This suspension occurs automatically and will go into effect unless you appeal the suspension. This suspension occurs prior to your DUI trial.