Labour has embarked upon a root and branch remaking of the criminal justice system in England and Wales, with a mass of new legislation implemented or planned. It has ensured a continuously high profile for criminal justice issues, and they have been at the centre of wider political discourse. Yet the basis and evidence on which these reforms are being introduced is both uncertain and highly controversial. Despite spending tens of millions of pounds of research into the criminal justice system in the name of evidence-based policy, evidence has counted only in relation to lowlevel technocratic