s 115 Duty of CO with respect to investigation of service offences
(1) This section applies where— (a) an officer becomes aware of an allegation or circumstances within subsection (2); and (b) the officer is not required by section 113(1) or 114(1) to ensure that a service police force or the tri-service serious crime unit is aware of the matter. (2) An allegation is, or circumstances are, within this subsection if it or they would indicate to a reasonable person that a service offence has or may have been committed by a relevant person. (3) In subsection (2) “ relevant person ” means a person whose commanding officer is the officer mentioned in subsection (1). (4) The officer must either— (a) ensure that the matter is investigated in such way and to such extent as is appropriate; or (b) ensure, as soon as is reasonably practicable, that a service police force or the tri-service serious crime unit is aware of the matter. (5) Subsection (4) does not apply if the matter has already been investigated in such way and to such extent as is appropriate.