If a patient dies and the doctor and patient cannot determine the cause of death or the cause of death is unknown, an autopsy should be performed within 48 hours after the patient's death; if the conditions for freezing the body are met (the temperature for continuous cryogenic freezing is minus 20 degrees Celsius to minus 18 degrees Celsius), it can be extended to 7 days, and the results will be available in about 20 to 30 days. Legal Objective:
Article 131 of the Criminal Procedure Law: For corpses whose cause of death is unknown, the public security organs have the right to decide on an autopsy and notify the deceased’s family to attend. Article 133 The inspection and inspection shall be recorded in written form, signed or sealed by the personnel and witnesses who participated in the inspection and inspection. Article 134: If the People's Procuratorate examines a case and the public security agency deems it necessary to re-inspect and inspect the case after conducting an inquest and inspection, it may request the public security organ to re-inspect and inspect the case, and may send a prosecutor to participate.