(1)The Lord Advocate—
(a)must issue a code of practice providing guidance about this Part, and
(b)may from time to time revise the code for the time being in force.
(2)The persons mentioned in subsection (3) must have regard to the code of practice for the time being in force in carrying out their functions in relation to the investigation and reporting of crime and sudden deaths.
(3)Those persons are—
(a)police forces,
(b)prosecutors,
(c)such other persons who—
(i)engage (to any extent) in the investigation of crime or sudden deaths, and
(ii)submit reports relating to those investigations to the procurator fiscal,
as the Scottish Ministers may prescribe by regulations.
(4)The Lord Advocate must lay before the Scottish Parliament any code or revised code issued under this section.