 He became a Barrister-at-Law, Inner Temple, in 1953.Pine was a member of the International Institute of Genealogy and Heraldry, Fellow of the Society of Antiquaries of Scotland, a Fellow of the Ancient Monuments Society, a Life Fellow of the Institute of Journalists, a Freeman of the City of London, and a Liveryman of the Glaziers' Company.In 1959 he was the unsuccessful Conservative candidate for Bristol Central.