a constable of a police force in England and Wales,a constable of at least the rank of inspector,
a constable within the meaning of Part 1 of the Police and Fire Reform (Scotland) Act 2012 (asp 8) (see section 99 of that Act),a constable of at least the rank of inspector,
a police officer within the meaning of the Police (Northern Ireland) Act 2000 (see section 77(1) of that Act),a police officer of at least the rank of inspector,
an officer appointed by the Police Ombudsman for Northern Ireland under section 56(1) or (1A) of the Police (Northern Ireland) Act 1998,an officer of at least the rank of inspector,
a member of a civilian police staff,a constable of at least the rank of inspector,
a constable of the British Transport Police Force,a constable of at least the rank of inspector,
a constable of the Ministry of Defence police,a constable of at least the rank of inspector,
a member of the Royal Navy Police or any other person who is under the direction and control of the Provost Marshal of the Royal Navy Police,a member of the Royal Navy Police of at least the rank of lieutenant,
a member of the Royal Military Police or any other person who is under the direction and control of the Provost Marshal of the Royal Military Police,a member of the Royal Military Police of at least the rank of captain,
a member of the Royal Air Force Police or any other person who is under the direction and control of the Provost Marshal of the Royal Air Force Police,a member of the Royal Air Force Police of at least the rank of flight lieutenant,
a member of the tri-service serious crime unit described in section 375(1A) of the Armed Forces Act 2006 or any other person who is under the direction and control of the Provost Marshal for serious crime,a member of the Royal Navy Police, Royal Military Police or Royal Air Force Police of at least the rank of lieutenant, captain or flight lieutenant,
a National Crime Agency officer,a National Crime Agency officer of grade 3 or above,
an officer of Revenue and Customs,an officer of Revenue and Customs of at least the grade of higher officer,
a member of the Serious Fraud Office,a member of the Serious Fraud Office of grade 7 or above,
a person appointed as an immigration officer under paragraph 1 of Schedule 2 to the Immigration Act 1971,an immigration officer of at least the rank of chief immigration officer,
an officer of the department of the Secretary of State for Business and Trade, so far as relating to the Insolvency Service,an officer of the department of the Secretary of State for Business and Trade, so far as relating to the Insolvency Service, of grade 7 or above,
an officer of the department of the Secretary of State for Health and Social Care authorised to conduct investigations on behalf of the Secretary of State,an officer of the department of the Secretary of State for Health and Social Care authorised to conduct investigations on behalf of the Secretary of State of grade 7 or above,
an officer of the NHS Counter Fraud Authority,an officer of the NHS Counter Fraud Authority of at least pay band 8b,