DNA: Databases

Home Department written question – answered on 5th July 2010.

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Photo of Alan Johnson Alan Johnson Shadow Home Secretary and Shadow Minister for Women and Equalities

To ask the Secretary of State for the Home Department in how many cases of (a) homicide, (b) rape, (c) sexual assault and (d) serious violence which took place in 2008-09 a sample from the DNA database of an individual who had previously been arrested but not charged with an offence was used in evidence.

Photo of Theresa May Theresa May Minister for Women and Equalities, The Secretary of State for the Home Department

DNA profiles on the National DNA Database are used to match against material taken from crime scenes. Any such match is used as a tool to direct an integrated criminal investigation, and all the normal investigative tools are used in building a case to the point where it is put before the courts.

We do not hold centrally the number of DNA profiles from the Database used in evidence to secure a conviction. During 2008-9, there were four convictions for rape in which Senior Investigating Officers reported Database matches with unconvicted individuals that were of direct and specific value to the investigations. It is not possible to identify from the material held centrally the weight of other evidence available in these cases.

No such reports were received in the other categories of case.

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