Aviation Security Operational Command Unit

The Aviation Security Operational Command Unit (SO18) is a Specialist Operations unit of London's Metropolitan Police Service. The unit is responsible for providing policing and security for both Heathrow and London City airports. London's other airports, Gatwick, Stansted and Luton are policed by Sussex, Essex and the Bedfordshire Police respectively, as they are not located in the Metropolitan Police District.

Policing at Heathrow was initially undertaken by the Civil Aviation Authority. In 1965, the responsibility was taken over by the British Airports Authority Constabulary, which subsequently passed to the Metropolitan Police on 1 November 1974 as a consequence of the Policing of Airports Act 1974.

Policing of London City Airport has always been undertaken by the Metropolitan Police, with Aviation Security acquiring the remit from local officers during 2004.

The unit employs around 400 police officers, the vast majority being trained Firearms Officers. Along with carrying out routine policing, Aviation Security must always guard against terrorism and be ready to respond to an aircraft emergency. Human trafficking is another area policed, with close working relationships existing with UK Visas and Immigration. Traffic wardens and Police Community Support Officers work at both airports.

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