Section 14

Any of the persons specified in the Schedule, in the order of priority stated, when persons in prior classes are not available at the time of death, and in the absence of actual notice of contrary indications by the deceased person, or actual notice of opposition of a member of the same class or a prior class, may authorise the post‑mortem examination of the body of the deceased person for the purpose of establishing or confirming the cause of death or of investigating the existence or nature of abnormal conditions.

The persons authorised by subsection (1) may give the authority after death or immediately before death.