What leads to a driver's license being revoked?

If you have 0.3 per mille in your blood and are involved in an accident with damage to property or are endangering other road users, you risk losing your driving licence. In addition, fines and imprisonment of up to five years may be imposed.
But even without an accident, you can lose your driver's license: If you drive at more than 1.0 per mille, your driving licence will also be revoked.

Whoever drives under the influence of illegal drugs (e.g. cannabis) and endangers other road users must reckon with a zero tolerance limit. Even the smallest traces of drugs in your blood or even your possession are sufficient to withdraw your driving licence. What's more, anyone who is known to the police as a drug user can have his driving licence revoked even if he wasn't intoxicated when driving.
You may also be subject to fines and imprisonment (as if you were driving under the influence of alcohol).

If eight points have been accumulated in Flensburg, you are threatened with losing your driver's license. However, the authority must first send a admonitionat five points and a warning at seven points. If, after the warning, another point is reached in the driving aptitude register, the driving licence is revoked.

Hit-and-run driving, burglary, driving over a red light and other car-related offences can lead to driving disqualification.

Untreated diseases, such as diabetes or dementia, can lead to the withdrawal of a driver's license, as it could lead to uncontrollable seizures in the middle of road traffic.

If you ride a bicycle under the influence of alcohol or drugs, you may also lose your driver's license.