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Police aviation in United Kingdom provides the British police with an aerial support unit to assist them in pursuit, surveillance and tracking. The most common air support aircraft is the Eurocopter EC 135T, which is equipped with daytime and night vision video equipment, instrument flight rules systems and radio equipment to track suspects and liaise with officers on the ground. While most aerial units operate helicopters, some forces also use of aeroplanes such as the Britten-Norman Defender. An aeroplane allows higher and quieter surveillance, making it less likely that suspects will become aware they are being watched. A light aircraft also allows for longer flying time and lower running costs. Police aviation in England and Wales was once a force-by-force organisation, however from April 2012 it became centralised as a National Police Air Service. == History == In 1921, the British airship R33 was able to help the police in traffic control around the Epsom and Ascot horse-racing events.〔(R33 - G F A A G 1916–1921 : Early Life )〕 The large mural depicting the 1936 Battle of Cable Street public order incident on the side of St. George's Town Hall in the East End of London depicts the police autogyro overhead〔(【引用サイトリンク】title=The Battle of Cable Street mural, Shadwell - London Mural Preservation Society )〕 that was present on the day.〔(【引用サイトリンク】title=The working life of Museum of London: How the East Was Won )〕〔(【引用サイトリンク】title="British fascism and the measures taken against it by the British State, p4" by David Botsford )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Police aviation in the United Kingdom」の詳細全文を読む スポンサード リンク
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