dna database graphs against universal database

Second, although the number of DNA repeats used to compare profiles means it is very unlikely that any two individuals will have the same profile, it is not impossible. The matching of an individual's DNA to that of DNA recovered from a crime scene does not necessarily mean that that person is the criminal: 'First, a DNA profile can be generated from very few cells that can be left by innocent means-the amount left on a drinking glass or a door handle. But this approach ignores the fundamental reason for a statute of limitations-in very old cases it is hard for defendants to defend themselves properly.' To prevent sex-offenders from using the statute of limitations to escape prosecution, where no match can be made to a person, the DNA itself will be charged with the offence. In New York City police are going one step further.

Police forces across the world claim that this technique has allowed them to solve many cases, some years old. This technique involves attempting to match a DNA profile obtained from a crime scene against a DNA database. The over-reliance by police and governments on DNA fingerprinting is discussed: '…the use of DNA evidence in criminal cases, in particular the use of so-called cold hits to identify perpetrators, is worrisome. Creating a DNA database of all UK men to assist in criminal investigations may sound extreme however this week's editorial proposes that there has been no more rational option to date in an attempt to use DNA profiling to assist in the identification of violent offenders in the UK, 80% of whom are men.

Dna database graphs against universal database