There are three main ways you can test for DUI - urine testing, blood testing and the breathalyzer. Why is it that cops prefer the breathalyzer? Especially when it is the least accurate of the three methods? The answer is that you need a search warrant to obtain blood and urine, your exhalations are technically not your body, and therefore no warrant is needed to obtain a sample of breath. In states where it is a crime to refuse a DUI test, the breathalyzer is the police's main weapon. If they wanted to use urine or blood testing, they would have to go through the process of obtaining a warrant, something they'd rather not take the time to do. Remember your rights, and what you have the choice to consent to or refuse. Also, never operate a vehicle if you are under the influence of any substance. If you live in Burlington, Essex, Colchester, Winooski, Williston, Shelburne or anywhere in the State of Vermont, and have been arrested or charged with DUI or any crime, call The Law Office of C Jordan Handy for aggressive and experienced legal defense.