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Royal Maritime Auxiliary Service

The Royal Navy Police (RNP), or Royal Naval Police, formerly known as the Royal Navy Regulating Branch, is the military police branch of the Royal Navy. Its members are known as Regulators and enforce law, order and discipline both aboard ship and in shore establishments. Unlike the Royal Military Police and Royal Air Force Police, the Regulating Branch only recruits from personnel who are already in the Navy and have a minimum of four years' service in another trade. Its members hold a minimum rate of Leading Regulator (Leading Rating) and can be promoted to Regulating Petty Officer (Petty Officer), Master-at-Arms (Chief Petty Officer) and Warrant Officer Class 1 Master-at-Arms. Unlike the majority of the Royal Navy, Warrant Officer Class 2 is not an attainable rank within the RNP.

The Regulating Branch has its own Special Investigation Branch (SIB), which is employed investigating serious crimes. The trade badge for Regulators is a crown (worn in a wreath by Masters-at-Arms and Warrant Officer Masters-At-Arms). Non-police Officers attached to the Royal Navy Police wear a white armlet on the left wrist bearing a crown between the letters "NP" (Naval Patrol).

Nicknamed "Crushers", it is the Regulators who punish other personnel for minor rules infractions of the Naval Discipline Act (including such things as returning to the ship late or drunk), and also conduct serious criminal investigations.

In addition to their law enforcement role, Regulators aboard warships perform other important functions, including Flight Deck Officer and manning of the ship's steering positions in times of emergency or war. They are also in charge of the Shore patrol.

The RNP will also absorb the Royal Marines Police.[1]

RN Police are now trained at the Defence Police College, Southwick Park, along with the Royal Military Police and Royal Air Force Police.

The RN Police have RNP headquarters in Portsmouth (Eastern), Plymouth (Western) and Helensburgh, Scotland (Northern). It has SIB units in Portsmouth and Plymouth.

The motto is the Latin "Ne Cede Malis" which translates to 'Do not yield to adversity' or 'Do not give in to evil'.

Naval Patrol Armlet


  1. ^ Memorandum from the Ministry of Defence


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