They have to obtain a search warrant to take your blood, unless you consent, and only if you refuse to take the BAC at the station. You have the right to refuse the pbt. on the side of the road, but if you refuse to take the datamaster which registers your blood alcohol content, they get a search warrant (really easy to obtain) and they take you to the hospital. However, if they find out you are a diabetic, they can take you to the hospital for a blood test without a search warrant.
Answered on Jan 30th, 2013 at 2:11 PM