Art. 184 CrimPC from 2023

Art. 184 Appointment and instructions
1 The director of proceedings shall appoint the expert witness.
2
3 The director of proceedings shall give the parties prior opportunity to comment on the expert witness and on the questions and to submit their own applications. The director of proceedings may dispense with this requirement in relation to laboratory tests, in particular where they relate to determining the blood-alcohol concentration or the level of purity of substances, proof of the presence of narcotics in the blood or the preparation of a DNA profile.
4 Together with the instructions, they shall provide the expert witness with the documents and lis required to prepare the report.
5 They may revoke their instructions at any time and appoint new expert witnesses if this is in the interests of the criminal case.
6 They may request an estimate of the costs before issuing the instructions.
7 If a private claimant requests an expert report, the director of proceedings may make instructing an expert witness dependent on the private claimant making an advance payment to cover costs.
(1) SR 311.0Es besteht kein Anspruch auf Aktualität und Vollständigkeit/Richtigkeit.