Key legal question
Whether the administrative authority could depart from the penal ordinance characterizing the conduct as a simple traffic violation.
Extracted holding
Yes. Because the penal decision was an ordonnance pénale based only on the file, the administrative authority was not bound by it and could qualify the conduct as a grave violation.
Extracted reasoning
The administrative authority may depart from a criminal judgment where the judge did not fully clarify the legal issues or decided only on the file; a simple traffic offense under criminal law may still correspond to a serious administrative offense.