Christopher was born in Britain in 1947. He was educated at Marlborough College, University of St Andrews and Inns of Courtlaw School. He and his wife, Christine, have two children: Antonia and Philip. He was called to the Bar in 1972.Christopher was elected to Wandsworth Council in 1974 and was Leader of the Council from 1979 until 1983. Christopher has served as a member of the Inner London Education Authority, a member of the Association of Metropolitan Authorities, and a member of the London Boroughs Association.