The flashlight thing is a Horizontal Nystagmus Test, which I don't think works for passive detection. You have to follow the light with your eyes to trigger the twitching at a particular angle. I suppose you could force…
I agree for repeat offenders. Drunk driving, though, is a particularly tough thing to stop. It's not typically sober "joe" that decides to drive. The decision is usually made by someone not in a great state to make it.
The flashlight thing is a Horizontal Nystagmus Test, which I don't think works for passive detection. You have to follow the light with your eyes to trigger the twitching at a particular angle. I suppose you could force…
I agree for repeat offenders. Drunk driving, though, is a particularly tough thing to stop. It's not typically sober "joe" that decides to drive. The decision is usually made by someone not in a great state to make it.