Questione giuridica chiave
Whether the appeal against the order for an administrative expert examination was admissible at this stage.
Decisione estratta
Only the issue of a concrete challenge to the expert's recusal could be reviewed in an appeal against an intermediate decision; the objections raised concerned the necessity of the examination and the choice of expert, which must be reviewed later with the final decision.
Motivazione estratta
The challenge was directed against an intermediate decision under Art. 92 f. BGG. Substantive objections to the ordering of the expertise and objections unrelated to the expert's personal disqualification do not justify immediate federal review.