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Advance In DNA Testing Could Make Law and Order Easier to Keep

Comstock/Thinkstock(JERUSALEM) -- When it comes to cracking crime, DNA analysis can often help investigators confirm or eliminate suspects. But it has one central limitation: when one DNA sample mixes with another, there's no method to identify one DNA strand beyond a reasonable doubt -- making evidence inadmissible in court. But a new technique developed in Israel may change that.

The method -- developed at Hebrew University and written up in the journal Forensic Science International: Genetics -- uses existing technology to look for a person's very rare DNA sequence changes.

"If in the DNA mixture you find the presence of all the, say, 100 rare variants, that's proof that the DNA of that specific person is present in the mixtures," said developer Ariel Darvasi.

He says the algorithm he developed to test his method proves it's accurate enough to be used in court.

Darvasi is in talks to develop the product.

Copyright 2011 ABC News Radio

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