Questione giuridica chiave
Whether the refusal to restore the appeal deadline was arbitrary under cantonal law.
Decisione estratta
The refusal was not arbitrary because the applicant was not prevented without fault from acting in time.
Motivazione estratta
He could have filed a short appeal declaration within five days, in French or his own language, and requested translation if needed; his language difficulties and detention did not amount to a non-fault impediment.