The validation of forensic DNA grade consumables used nationally within Sexual Assault Referral Centres (SARCs)
| Lead institution | |
|---|---|
| Principal researcher(s) |
Michelle Gaskell
|
| Police region |
North West
|
| Collaboration and partnership |
This project is supported by the College of Policing Bursary Scheme. |
| Level of research |
PhD
|
| Project start date |
|
| Date due for completion |
|
Research context
This study was a national validation of the suitability of forensic DNA grade consumables used to recover forensic evidence in Sexual Assault Referral Centres (SARCs).
It is essential that the consumables and forensic kits used in the recovery, storage, transportation and analysis of forensic evidence do not compromise the integrity of the samples collected or adversely affect the analytical process in any way. To do so could potentially diminish the value and reliability of the forensic evidence. This in turn would increase the risk of an investigation being misled, poor judicial outcomes being made in the courts, or could even result in a miscarriage of justice. These risks have long been recognised (Sullivan and others 2004) together with the consequences of contaminated consumables misleading criminal investigations (Neuhuber and others 2009).
The aim of this national validation was to demonstrate that consumables used in a SARC to recover forensic DNA evidence are free from detectable levels of DNA up until their point of use. Every SARC across England and Wales participated in this study, providing approximately five forensic DNA grade consumables from their stores which were tested for DNA. All 258 consumables tested were negative for detectable levels of DNA, demonstrating that the consumable receipt, storage and handling procedure for all 55 SARCs is fit for purpose as their consumables remain free from detectable levels of DNA up until the point they are used to recover forensic DNA evidence from victims.
Research methodology
This project was managed and coordinated by Michelle Gaskell (Quality Specialist) through the Forensic Capability Network's national SARC Accreditation Support Network. 55 SARCs across England and Wales participated. Data has been provided from the DNA testing of 258 consumables by a forensic service provider.
References
Sullivan K and others. 2004. 'New developments and challenges in the use of the UK DNA database: Addressing the issue of contaminated consumables'. Forensic Science International, 146S, S175-176.
Neuhuber F and others. 2009. 'Female criminals – It’s not always the offender!' Forensic Science International: Genetics Supplement Series, 2(1), pp 145–146.