@Callaspade
You sure they'll dispose immediately after use by each motorist. The cost!
Again suppose I've taken just one Tusker how am I judged, guilty. Does the gadget determine how much Alcohol one has taken.
I thought the essence here is to control drunken/intoxicated driving.
The surest way to tell is to check blood for alcohol level in the system. That requires a medic.
Just as absolute power corrupts leaders, so does absolute fanaticism blind the people from logic