Questão jurídica principal
Whether the extradition decision should be annulled for lack of legal basis or invalidity of the German request and warrant.
Decisão extraída
The challenged decision expressly relied on the applicable treaty and federal law; it was not void, and the German request and warrant did not render extradition unlawful.
Fundamentação extraída
The relevant treaty framework and Swiss law were correctly identified. The foreign request included the required warrant, and the appellant did not show any formal defect undermining the decision.