Pourtant, un policier pourrait vouloir procéder au test, croyant que cette personne a pris une voiture pour aller au bar. Si cette personne a pris sa voiture pour aller au bar et a quitté le bar en taxi, elle n'a enfreint aucune loi.
Yet a policeman might wish to do the testing, believing that the person had driven to the bar.The person had driven to the bar, left the bar, taken a taxi home, and not broken any laws, but because the person was drunk as a skunk and the policeman knew that he or she had driven to the bar, the policeman could still subject the citizen to the test.