Comment by SoftTalker
6 days ago
AIUI breath test only establishes probable cause. If you fail a breath test you are taken for a blood draw.
Breath test results are routinely challenged (sometimes successfully) by demanding records showing that the device has been tested and calibrated according to the required schedule.
In my country (Aotearoa) the breath tests are "strict viability ", so proof
You can demand a blood test, but you have to know. Most people do not know