My husband, Mick Ryan, who has died aged 82, was emeritus professor of penal politics at the University of Greenwich, in London. Mick joined what was then Thames Polytechnic in 1973 to teach politics.
After some early collaborative work on London Docklands regeneration and parliamentary scrutiny of European legislation, he became interested in the organisation Radical Alternatives to Prison (RAP) and published his first book, The Acceptable Pressure Group, about it and the Howard League, in 1978.
