Question juridique clé
Whether the federal appeal against the cantonal transfer order was admissible despite its incidental nature.
Solution extraite
The decision was incidental and the conditions for immediate federal review were not met because no irreparable legal harm was shown.
Motifs extraits
A transfer order at the end of a criminal investigation does not normally cause irreparable legal damage; the same applies to a Geneva so-called soit-communiqué order.