In earlier years Professor Miller’s law-related activities have included chairing Social Security and Disability Appeals Tribunals (1986 to 1995), and acting as an advisor to such organisations as the Consumers’ Association, National Consumer Council and the Organisation for Economic Cooperation and Development. (OECD). He also occasionally provides opinions in the areas of his expertise, and over the years has lectured and given seminar presentations to academic and professional gatherings both in the United Kingdom and in Australia, Canada, France, Japan and the USA.