56Formal investigation by the Ombudsman
(1)Where a complaint or matter is to be formally investigated by the Ombudsman under section 54(2) or (3)(a) or 55(3), (5) or (6), he shall appoint an officer of the Ombudsman to conduct the investigation.
(2)The Secretary of State may by order provide that any provision of the [1989 NI 12.] Police and Criminal Evidence (Northern Ireland) Order 1989 which relates to investigation of offences conducted by police officers (within the meaning of that Order) shall apply, subject to such modifications as the order may specify, to investigations under this section conducted by persons who are not police officers (within the meaning of that Order).
(3)A person employed by the Ombudsman under paragraph 3(1) of Schedule 3 shall for the purpose of conducting, or assisting in the conduct of, an investigation under this section have all the powers and privileges of a constable throughout Northern Ireland and the adjacent United Kingdom territorial waters; and subsection (3) of section 18 applies for the purposes of this subsection as it applies for the purposes of subsection (2) of that section.
(4)Section 66 applies to a person to whom subsection (3) applies as it applies to a constable.
(5)A person to whom subsection (3) applies shall not be regarded as in police service for the purposes of—
(a)Article 145 of the [1995 NI 12.] Trade Union and Labour Relations (Northern Ireland) Order 1995; or
(b)Article 243 of the [1996 NI 16.] Employment Rights (Northern Ireland) Order 1996.
(6)At the end of an investigation under this section the person appointed to conduct the investigation shall submit a report on the investigation to the Ombudsman.