No examination by any person charged with neglect

Where any credible information is given to the coroner, or to any member of the police department authorised to require a post mortem examination to be made of the body of any person, that the death of that person was caused partly or entirely by the improper or negligent treatment of any medical practitioner or other person, that medical practitioner or other person shall not be allowed to perform or assist at the post mortem examination of the body.