Questão jurídica principal
Whether the public-law appeal is admissible against an interlocutory order ordering a psychiatric expertise.
Decisão extraída
The order is an incidental decision and is immediately reviewable only if it can cause irreparable legal harm; that was not shown.
Fundamentação extraída
Ordinary evidence-taking measures normally do not create irreparable harm. The alleged disadvantages were only factual delays or possible procedural consequences, not a non-remediable legal injury.