Questão jurídica principal
Whether the staatsrechtliche Beschwerde was admissible alongside the Verwaltungsgerichtsbeschwerde
Decisão extraída
No separate constitutional complaint was available because the administrative law appeal already allowed review of federal and treaty law issues.
Fundamentação extraída
Where the administrative law appeal is available, it covers alleged violations of federal law and state treaty law, leaving no room for a parallel constitutional complaint on the same matter.