Phys.org  April 3, 2023 Dust is an attractive evidence source, as it accumulates on undisturbed surfaces, often is overlooked by perpetrators, and contains sufficient human DNA for analysis. To assess whether single nucleotide polymorphisms (SNPs) genotyped from indoor dust using massively parallel sequencing could be used to detect known household occupants, a team of researchers in the US (North Carolina State University, MIT Lincoln Laboratory) recruited 13 households and provided buccal samples from each occupant and dust from five predefined indoor locations. They used a software developed to permit mixture analysis and identity searching to assess whether known occupants could […]