Anyone who, at the time of committing the crime, loses perception or will for causes of insanity, mental deficiency or unconsciousness due to drugs or narcotic or intoxicating substances of any kind, which have been given to him by force or which he has taken without being aware thereof, or for any other cause which, according to the science, causes the want of perception or will, shall not be criminally liable. However, if the insanity, mental deficiency, drugs, narcotic or intoxicating substances, or any other substances only cause a diminution or weakness of perception or will at the time of committing the crime, this shall merely be considered as an extenuating excuse.
Interpretation and application must be checked against the official text and current version.