After leaving the army, he commenced academic work as a lecturer in law at University College, London. He was also Sir Ernest Cassel Professor of Commercial Law at the
London School of Economics Law School,
University of London from 1948 to 1952 and visiting professor at
Harvard Law School from 1954 to 1955. He became professor and dean of the Faculty of Law,
University of Lagos from 1962 to 1965. He was the first Law Commissioner of England and Wales from 1965 to 1971 and subsequently vice-chancellor, University of Southampton from 1971 to 1979. During his time at Southampton, there was increasing financial stringency and increasing student numbers. However, the new Medical School expanded and there was provision of special residential facilities for disabled students. All first year students were able to live in university accommodation. At the same time, he served on
Harold Wilson's
Royal Commission on the Press. After retirement he was asked by the Department of Trade to provide advice to the Government on financial services resulting in the
Financial Services Act 1986. He is best known for his work in the
UK company law, where he authored the leading treatise, now taken over by
PL Davies, ==Personal life==