87% of latex gloves contaminated
Investigator Mediated DNA Contamination can significantly complicate what can be understood regarding DNA deposition in the matter and frequently leads to exclusion of evidence.
Lab contamination – 69% unknown contributors
Read the contamination study It is commonly understood that DNA will be transferred onto the outside of sample packaging during collection and with subsequent handling to varying degrees. This transferred DNA can and does make it’s way to other items.
True offender unknown – 15% of samples
Read the DNA study The presence and amount of offender DNA was linked largely to the offenders shedding rate. The study design incorporated a DNA free human size mannequin. which was fitted with DNA free underpants and bra.
65% of 5 person DNA profiles incorrect
Read the number of contributors study This study found that 64% of 5 contributor DNA profiles, and 24% of 4 contributor profiles were incorrectly assigned.
66% false positive with confirmatory test
Read the false positive study This 2023 peer reviewed scientific study provides critically relevant data on the frequency of false positives using ‘confirmatory’ blood tests.
80% frequency of non handler DNA
Read the DNA transfer study abstract DNA upon a discarded firearm cartridge case is undoubtedly significant information for the courts to consider. This study found that the non–handler was identified upon the spent cartridge in 80% of profiles.
Semen transfer by medical examiner
Read the vagina DNA transfer study abstract 63% false positive rate - DNA inside the vagina. Criminal lawyer explainer regarding DNA transfer via a speculum.
Indirect Semen Transfer
Read the January 2024 paper on semen transfer This recently published 2024 peer reviewed published scientific paper seeks to provide clarity as to the likelihood of indirect transfer of semen.
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