Jay, I was talking about when people get pulled over.
Here in Australia they put a device in front of your mouth, tell you to count to 10 and a few seconds later they know exactly what your blood/alcohol level is. If the breath test is over the limit you are taken to the station for a blood test and if the breath test is under, you go on your way. But in America they seem to make you do stupid things like walking a straight line, saying the alphabet backwards or LP's eye-folowing exercise... why?!? The technology exists to instantly, objectively and accurately determine whether somebody is over the limit, so why do the police there persist in using inaccurate, subjective, observational methods instead?