The breath alcohol test on a drunk man in Saarbrücken showed a value of 5.12 per mille.
The police had been called into a stairwell by a local resident on Tuesday morning because a drunk 35-year-old was there, the police announced on Tuesday.
The man could no longer walk independently.
After the alcohol test he was taken to a clinic, because a blood alcohol level of 3.0 or more can be life-threatening.
Saarbrücken - Symptoms of severe alcohol intoxication include loss of consciousness and reflexes, memory loss and poor breathing.
dpa