 In 1961 Mosley was an election agent for the Union Movement , supporting Walter Hesketh as parliamentary candidate for Moss Side . The motor racing journalist Alan Henry describes him as one of his father 's " right @-@ hand men " at the time of a violent incident in 1962 , in which Sir Oswald was knocked down by a mob in London and saved from serious injury by his son 's intervention . As a result of his involvement in this <unk> , Mosley was arrested and charged with threatening behaviour . He was later cleared at Old Street <unk> ' Court on the grounds that he was trying to protect his father . By 1964 , when he began work as a barrister , Mosley was no longer involved in politics . 
