Key legal question
Whether the refusal to revoke and replace the court-appointed expert in out-of-court proceedings was immediately appealable.
Extracted holding
No immediate appeal lay because the alleged defect could still be raised against any future final decision; no irreparable legal harm was shown.
Extracted reasoning
The challenged order concerned evidence administration. A disadvantage is irreparable only if it is legal in nature and cannot later be cured on appeal against the final decision. Here, the expert's alleged incompetence could be reviewed later.