J. R. Spencer is a Fellow of Selwyn College and Professor of Law at the University of Cambridge. His publications include Jackson's Machinery of Justice (8th edition 1989), The Evidence of Children: the Law and the Psychology (2nd edition 1993) and La procedure penale anglaise (1998). He was also part of the international team of lawyers which produced the EU Corpus Juris project, proposing a unified European law for the prosecution of offences of fraud against the Community budget. As well, he was a consultant to Lord Justice Robin Auld's review of the Criminal Courts.