For an orthopedics and traumatology specialist, it is a duty to be a legal expert unless he/she reports a valid excuse. In order to be an expert, first of all, it is necessary to attend the courses opened by the institutions authorized by the Ministry of Justice (the authorized institution is the Turkish Medical Association) and to have a certificate, and to register for the `regional councils of experts`. However, the person can be appointed as an expert by the judicial authorities without registration. In carrying out this task, the `expert regulations` published in the Official Gazette No. 03.08.2017 / 30143 should be read and taken as a guide, and the previous examples should be referred.