Key legal question
Whether the public law appeal was admissible despite the foreigner law exclusion, and whether the subsidiary constitutional complaint was available.
Extracted holding
The public law appeal was admissible because the revoked permit would otherwise still have effects until its expiry; the subsidiary constitutional complaint was inadmissible.
Extracted reasoning
A formally valid permit whose effects would continue absent revocation can be challenged by public law appeal. But no separate subsidiary constitutional complaint lies where public law appeal is available.