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1. The data are for subject sample profiles taken by forces in England and Wales only (and include profiles taken from volunteers). They do not include profiles taken by Scottish forces, the Police Service for Northern Ireland, Guernsey etc.
2. The data give the age of persons when their profile was loaded to the National DNA Database (NDNAD) in each of the financial years. There are a number of subject sample profiles loaded in each financial year for which the date of birth and also therefore the age on load is unknown.
3. The age figures should be treated with caution as there are some data quality issues relating to the recording of dates of birth on the Police National Computer (PNC) by arresting police officers. Key demographic data such as the DOB data are transferred electronically from the PNC to NDNAD.
4. There are 37,804 subject sample profile records on the database for which there is no record of the financial year when they were loaded to the NDNAD. These records have not been included in the count.
5. The figures given are the numbers of DNA subject sample profiles added to the NDNAD. There are more DNA profiles held on the NDNAD than there are individuals due to DNA samples being taken from some individuals on more than one occasion (i.e. due to replicate sampling). A study into the rate of replication on the NDNAD was first carried out in 2003. Using the rate of replication, it is possible to estimate the number of individuals on the database from the number of profiles. However, as the replication rate before 2003 is unknown, to ensure consistency, the data given are the number of profiles and not individuals. The estimated rate of replication on the database for the years since 2003 is as follows:
The estimated replication rate for financial year 2003-04 was 10 per cent.
The estimated replication rate for financial year 2004-05 was 10 per cent.
The estimated replication rate for financial year 2005-06 was 11 per cent.
The estimated replication rate for the end of financial year 2006-07 was 13.7 per cent.
|Table 2: N umber of subject sample profiles removed from the national DNA database|
1. The data are for subject sample profiles taken by forces in England and Wales only.
2. The data show the number of profiles loaded in each financial year (FY) since 2002-03 to date which have since been deleted in any subsequent year i.e. 256 subject profiles loaded in FY 2002-03 have since been deleted in the period between 2002-03 and 31 March 2007.
3. Some limited information is available on the number of profiles removed between 1995 and 2002. This is by calendar year only, and no age breakdown is available. In 2002, a management information database was created which enabled more detailed information to be captured.
4. As the data represent the number of persons whose profiles have been removed from the database, it is not necessary to apply a replication rate to the figures.
Mr. Bellingham: To ask the Secretary of State for the Home Department who was responsible for commissioning the investigation into sexual harassment allegations against the Deputy Governor at HM Prison Hindley; what action was taken as a consequence; and if he will make a statement. 
Mr. Martyn Jones: To ask the Secretary of State for the Home Department (1) what the age was of each individual convicted and given a minimum five-year sentence for possessing an illegal firearm in each of the last three years; 
(2) if he will list the countries of origin of the weapons which were possessed by the individuals convicted and given a minimum five-year sentence for possessing an illegal firearm in each of the last three years; and what the estimated age was of each such weapon; 
Mr. Coaker: The minimum five year sentence applies only to persons aged 18 or over and came into force for offences committed from 22 January 2004. The available information, relating to England and Wales for the years 2004 and 2005, is shown in the tables. Information for 2006 will be available in the autumn.
The court proceedings database does not hold data on the country of origin of weapons possessed by those convicted of possession of an illegal firearm nor the ages of such weapons as the individual circumstances surrounding offences are not held centrally.
|Table : Persons aged 18 and over sentenced and those given custody for firearms possession offences involving mandatory 5 year term, by offence, England and Wales|
|Offence and sentence||2004||2005|
|Table 2: Persons aged 18 and over sentenced to mandatory 5 year term (or over) for possession of firearms, by age, England and Wales|
These figures have been drawn from administrative data systems. Although care is taken when processing and analysing the returns, the detail collected is subject to the inaccuracies inherent in any large scale recording system.
RDS-NOMS, Home Office
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