0 present participle of breathalyse --
1 to test a driver's breath to see how much alcohol they have drunk --
There could be a case for breathalysing drunken pedestrians if they reached three times the driver's limit, for example.
We have seen chief constables going over the top in setting up road blocks around the country and breathalysing people.
It is bonkers to include such measures without being sure that police officers will be available to do the breathalysing and arresting.
There were four breathalysing cases that night and a road traffic accident.