Police Use DNA Phenotyping To Limit Pool of Suspects To 15,000

An anonymous reader quotes a report from Motherboard: The Queensland, Australia police have used DNA phenotyping for the first time ever in hopes of leading to a breakthrough for a 1982 murder. The department partnered with a U.S.-based company called Parabon NanoLabs to create a profile image of the murder suspect, a Caucasian man with long blonde hair. Police claim that this image was generated using blood samples found at the scene of the murder of a man from 40 years ago; according to the Australian Broadcasting Corporation this is the first time "investigative genetic genealogy" has been used in Queensland. This image does not factor in any environmental characteristics, such as tattoos, facial hair, and scars, and cannot determine the age or body mass of the suspect. However, Queensland investigators have published the image online and are offering a $500,000 reward and indemnity from prosecution to anyone who might have information about the suspect. The image is a vague rendering of a man that does not provide any more information than the sketch that the department already has of the suspect. This further perpetuates the hyper-surveillance of any man who resembles the image. Parabon NanoLabs has already been criticized by criminal justice and privacy experts for disseminating images that implicate too broad a pool of suspects. The Queensland police department said that the DNA sample from the case generated a genealogy tree of "15,000 'linked' individuals" and they have not been able to find a close match yet. Instead of facing the possibility that DNA phenotyping may not be an effective tool for narrowing down a suspect, the police department's strategy is to ask the public for their DNA samples. Criminologist Xanthe Mallett said in a press release that to help police find a match, people can "opt-in" to share their own DNA samples with investigators through DNA services such as Family Tree and GEDMatch. "Many members of the public that see this generated image will be unaware that it's a digital approximation, that age, weight, hairstyle, and face shape may be very different, and that accuracy of skin/hair/eye color is approximate," said Callie Schroeder, the Global Privacy Counsel at the Electronic Privacy Information Center.

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