Questão jurídica principal
Whether the complaint against the interim order ordering a follow-up expert assessment was admissible before the Federal Supreme Court.
Decisão extraída
The complaint was inadmissible because the challenged decision did not concern a reviewable recusal ground of an expert within the meaning of Art. 92 BGG.
Fundamentação extraída
Questions about the necessity of the assessment are substantive and must generally be reviewed together with the final decision; only true challenges to the expert's impartiality can be attacked immediately.