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Commonwealth of Pennsylvania v David Norman

DNA on underwear in sexual assault case

Crime On January 15, 2017, a Jamaican hotel cleaner was sexually assaulted.
Evidence Vaginal swabs and underwear were taken from the victim as evidence.
DNA The Pennsylvania State Police Forensic Division developed DNA data from the evidence items.
Match Due to the complexity of the data, the crime lab was unable to draw conclusions from the DNA.
TrueAllele On the same data, the computer connected the underwear to David Norman with a match statistic of 9.29 thousand.
Cybergenetics    On April 17, 2018, Dr. Mark Perlin testified before an Allegheny county jury. DNA transfer was discussed.
Outcome The jury found Mr. Norman not guilty.