75Qualifying criminal investigations
(1)For the purposes of this Chapter a criminal investigation is a qualifying criminal investigation if it is conducted by an investigating authority wholly or in part with a view to ascertaining—
(a)whether a person should be charged with a qualifying offence, or
(b)whether a person charged with a qualifying offence is guilty of it.
(2)The following are investigating authorities—
(a)a police force in England and Wales;
(b)the British Transport Police Force;
(c)the Serious Organised Crime Agency;
(d)the Police Service of Northern Ireland.
(3)The Secretary of State may by order amend subsection (2) so as to add or omit a body or other person.
(4)The provision which may be included in an order under subsection (3) by virtue of section 176 (power to make consequential provision etc) includes provision modifying any provision of this Chapter.