03 Jan '12, 6am

DNA profiling mistake prompts re-test of criminal cases

SINGAPORE: A mistake made in a DNA profiling laboratory has resulted in some criminal cases having to be re-tested. The Health Sciences Authority is re-testing DNA samples of 87 criminal cases, as a precautionary measure. This comes after HSA's DNA Profiling Laboratory discovered in August last year, that a reagent of higher than usual concentration, had been used in the tests. HSA said the incident arose from a new method of preparation being used. The laboratory manager had misread the label and used a stronger concentrate for dilution, resulting in the mistake. The reagent of higher than usual concentration was used as part of the DNA testing process between October 2010 and August 2011. HSA said however the scientific impact of the reagent is minimal. That's because the use of the reagent would not have resulted in false positives, leading to the wrongful identificatio...

Full article: http://www.channelnewsasia.com/stories/singaporelocalnews...

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