'CSI' Test Can Tell Age From Drop of Blood
New method works on stains that were made years ago
By Nick McMaster,  Newser Staff
Posted Nov 23, 2010 6:23 PM CST
A Zaka paramedic service volunteer prepares to clean bloodstains at the scene of a bombing in the town of Dimona, southern Israel, Monday, Feb. 4, 2008.   (AP Photo/Tsafrir Abayov)

(Newser) – A new blood test from the Netherlands can determine an individual's age within a range of 9 years, the Telegraph reports. The method works by looking at a genetic feature of T cells that diminishes at a constant rate over time. The test can work with a very small amount of blood, including "situations where only bloodstains are available, which covers a large proportion of crime cases," says the lead researcher. “I wouldn't be surprised if it could be used on historical blood stains that are decades or hundreds of years old.”

 

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