Failure of a test usually means an instant short spell in jail, and it is hoped that such a dramatic sentence will shock people out of re-offending - thereby reducing long-term prison numbers and cutting off alcohol-related crime at the source.

BBC: How one US state deals with alcohol-related crime

Maybe it's an act of desperation, but they have concluded that instant feedback is one way to cope with the pressure for shorter product cycles and with the high failure rate of new products.

FORBES: Have It Your Way