sentences:  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 that was present on the day.Aerial units are often tasked to assist in vehicle pursuits.Air support allows ground units to disengage and follow from a discreet distance, hopefully making the pursuit less dangerous while still allowing ground units to be able to close in quickly as directed to apprehend suspects.