1. Ramsay M. (The Effectiveness of the Forensic Science Service. Home Office Research Study no 92. Home Office Research Planning Unit, 1986.
2. Steventon B. The ability to challenge DNA evidence. RCCJ Research Study no. 9, 1993.
3. Roberts P and Willmore C. The role of forensic science evidence in criminal proceedings. RCCJ Research Study no. 11, 1993.
4. Using physical evidence. A report for the FSS and ACPO Joint Research Project;Saulsbury;The Police Foundation,1994
5. Tilley and Ford. Forensic Science and Crime Investigation. Police Research Group Crime Detection and Prevention Series Paper 73. London: Home Office, 1996.