The Crown Court Study (Royal Commission on Criminal Justice Research Study No.19, 1993 ) was based on questionnaires administered to all the participants in every completed case during a two-week period in every crown court in England and Wales (save three courts used in the pilot).
The sample consisted of over 3,000 cases, including some 800 trials. Long and different questionnaires were given to the judges, the barristers, the CPS, the defence solicitors, the police, the jurors, the court clerks and the defendants. The report, 274pp, includes a ten-page index.