Police helicopter EC145 landing, engine start and takeoff (NPAS)

A surprise guest, an EC145 from the National Police Air Service has visited Redhill Aerodrome. G-MPSC is usually based at North Weald Airfield.
The National Police Air Service (NPAS) is a police aviation service that provides centralised air support to the 43 territorial police forces in England and Wales, as well the three special police forces serving that area.