Many many years ago in the UK i got pulled by the cops and breath tested, at that time you could say that my last drink was only a few minutes before and i could have 20 minutes "grace" from the drink to being tested. I was under...but while i waited, they went over the car looking for a reason to give me a ticket, they never found one.
Just wondering if the same 20 minute applies here or even if it still applies in the UK ???