info for cycling:

Anything over 1.6 (0.016% BAC) is considered to be in incapable for cycling (§ 316, § 315c StGB). He'll almost certainly have to go to court, can expect a fine of 40-50 times his daily income and up to 7 points in the Flensberg register (even if he is a foreigner or does not have a German driving license - points are allocated to the person, not the license). He may have to undergo psychiatric testing ("MPU") but this depends on the court. If he is required to undergo an MPU and "fails" he might lose his driving licence (even if English). An MPU is almost always the case if he was involved in an accident with this level of alcohol, but will depend on his demeanour with the police when they caught him and the opinion of the court. Given that he'll get 7 (presumably first-time) points on his record he'll only need one more point to trigger an automatic MPU in any case