A. A policeman
Who can require you to undergo a breath screening test?
A. A policeman
B. An ambulance officer
C. A judge or magistrate
D. None of the above
The correct answer is A
The police officer will give you either a tube of crystals with a bag on the end or a small electronic device, and will ask you to blow into it. If your alcohol level is high, you will be asked to take an evidential breath test or have a blood test.