There is guidance to the Procurator Fiscal in relation to the extent and nature of the investigations which should take place in Chapter 12 of the Book of Regulations published at: http://www.copfs.gov.uk/images/Documents/Prosecution_Policy_Guidance/Book_of_Regulations/Book%20of%20Regulations%20-%20Chapter%2012%20-%20Deaths%20-%20Part%201.PDF A post mortem examination should take place as soon as possible after the report of a death to the Procurator Fiscal and will often take place within a few days of the date...