1. Forensic Science Service 2004 The National DNA Database Annual Report, 2003-2004 http://forensic.gov.uk/pdf/company/publications/annual-reports/annual-report-NDNAD.pdf
2. Encoded evidence: DNA in forensic analysis;Jobling;Nature Reviews Genetics,2004
3. Strom , Kevin J. Matthew J. Hickman Unanalyzed evidence in law-enforcement agencies: A national examination of forensic processing in police departments Criminology & Public Policy
4. The Innocence Project 2009 News and information fact sheets Innocenceproject.org http://innocenceproject.org/Content/351.php