Question juridique clé
Whether the Federal Supreme Court could order the immediate return of B. to Switzerland.
Solution extraite
No; that request was inadmissible because the available remedies had not been exhausted on that point.
Motifs extraits
The courts in Switzerland were not internationally competent to order child-protection measures once B. had her habitual residence in Germany again; only a request to set aside and remit the cantonal decision remained open.