Measures against drunken driving in Germany.

The German authorities tend to reinforce the combat against drunken driving. Three of the countermeasures will undergo changes. The usual blood tests will be replaced by breath tests in the near future. The legal BAC limit will be reduced. And the limit above which a BAC is thought to indicate deviant drinking behaviour will be lowered. The changes may be desirable. But at the same time they are associated with analytical problems which demand a critical discussion.