Yes. If clarification of any facts essential for the criminal proceedings requires professional expertise, the law enforcement authority and, in proceedings before the court, the presiding judge, shall request a professional opinion besides an expert activity performed under a special Act. In simple cases, written confirmation, the accuracy of which is beyond doubt, may be sufficient (Section 141 of the Code of Criminal Procedure). If due to the complexity of the clarified facts the procedure under Section 141 is not sufficient, the law enforcement authority and, in the proceedings before the court, the presiding judge, shall take on an expert for the submission of an expert opinion. If it is in regards to the clarification of particularly complex facts, two experts shall be invited. Two experts must always be invited if it is an autopsy of a corpse. (Section 142 of the Code of Criminal Procedure The law enforcement authority or the court shall mainly take on an expert organisation specialised in the activity that is the subject of the expert opinion in the criminal proceeding for the submission of an expert opinion under Section 142. Such organisation shall state the name of an expert who may be interrogated with regard to the subject matter of the expert opinion. An expert opinion may also be procured by any of the parties to the criminal proceedings. In exceptional and particularly serious cases requiring special scientific assessments or to review an expert opinion, the law enforcement authority or the court may invite an expert institute to submit an expert opinion.