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DNA Test after Death

By: Ian Murnaghan BSc (hons), MSc - Updated: 20 Sep 2020 | comments*Discuss
 
Dna Cremains Ashes Heat Process

Q.My sister was involved in a car crash, and she lost her unborn child. The autopsy report revealed she was 18 weeks and 1 day pregnant. A wrongful death suit has been filed for the loss of her child, however, there is a question of who the father is. My sister chose to have her stillbirth cremated, and I was wondering if there was a way DNA testing could be done since the baby was cremated. If so what are the options?

(Mrs JB, 10 September 2008)

A.

I want to offer sincere condolences to your sister and your family. I wish I could offer you a more hopeful answer but unfortunately, the high heat of the cremation process destroys DNA. This means it is extremely unlikely that you would be able to make an identification of the father through DNA testing of the ashes. When a cremation is properly performed, the heat is extreme to the extent that no living material exposed to the heat can survive it.

Interestingly enough, one part of the body that is weakened but still intact to some degree following cremation is a person's teeth. Virtually all properly performed cremations will ultimately pulverize the teeth though, so there is little chance of intact DNA. However, on the rare chance there was a tooth, it could be possible to use this for paternity identification. Given the age of the foetus at death, there would have been teeth already forming, despite the fact they had not yet emerged.

Generally, DNA testing is quite reliable on a deceased person prior to cremation but it is once the DNA is exposed to the heat of cremation, it does not survive intact. I am not sure if this is any consolation, but I can say that your sister is not alone in her quest to determine DNA from ashes. In fact, the question is a common one heard at funeral agencies but at this point in time, the answer is not favourable to testing.

Still, while there is not yet any reliable, accurate form of testing for DNA in cremated remains, it is not to say that this kind of test won't become available in the future. I can appreciate that your sister may need to put closure on the paternity aspect of her dead child, but the only advice I can provide is to try to find a way to emotionally move beyond the issue, through family and friendship support or through counselling. Your sister can still stay aware of the newest developments in forensic science and DNA testing – perhaps one day testing will be able to include ashes.

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HELLO.I WANT TO KNOW IF I COULD THE DNA FROM MY BROTHER AND HE HAS BEEN DEAD FOR 30 YEARS.HE WAS NOT CREMATED AND IF IS POSIBLE FROM WHAT PART OF THE BODY WOULD THE BEST TO OBTAIN IT.I PLAN TO HAVE HIM EXHUME VERY SOON.PLEASE ADVISE ME.THANK YOU.IS FOR PATERNITY REASON.
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