The Brits have been using a national DNA database for 15 years.... and are still arguing about it.
"The database was established in 1995 by Michael Howard, the last Conservative Home Secretary, but was enthusiastically embraced by his Labour successors. Seven years ago they gave police the power to take mouth swabs from anyone they arrested, with the result that Britain today leads the world on DNA collection by a very long way.
Ministers repeatedly argued that its effectiveness in catching offenders previously beyond the reach of the law outweighed civil liberties objections. Tony Blair even raised suspicions in 2006 that his government had designs on creating a universal DNA register, arguing: "The number on the database should be the maximum number you can get."
Does the information on the database help to fight crime?
According to one recent estimate, less than one per cent of recorded crime is solved using the database.
But the Home Office said successful matches had been obtained in 390,000 crime scenes between April 1998 and September 2008. Last year police achieved 17,614 matches, including investigations into 83 murders and 184 rapes. Ministers say about 10 per cent of matches for serious offences are with people without a criminal record. Ministers can point to a series of "cold case" successes where criminals have been caught because of DNA samples taken years earlier.
James Lloyd, the "shoe rapist" who preyed on women between 1983 and 1986, was jailed for life 20 years later after a sample was taken from his sister over a drink-driving offence suggested the attacker was a close relative. In 2004, brothers Lee and Stephen Ainsby were found guilty of rape and abduction of a 17-year-old girl nine years earlier. Lee Ainsby had been arrested for being drunk and disorderly when a DNA sample was taken from him.
Critics retort that DNA is strictly limited in its effectiveness, with false matches at crime scenes to passers-by and victims, often because the genetic material has deteriorated.
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