Questione giuridica chiave
Whether the factual basis for an indefinite precautionary driving-license withdrawal was sufficient
Decisione estratta
The cantonal findings were insufficient because the medical assessment did not include a proper traffic-psychological/psychiatric evaluation of the appellant's alcohol problem and driving attitude.
Motivazione estratta
A pathological CDT value alone is not enough for an indefinite withdrawal. Given the serious sanction, thorough medical-psychiatric clarification was required, and the existing examination was too cursory.