An integrated system for forensic DNA testing of sexual assault cases in the Philippines.

In the Philippines, more than 7000 cases of sexual assault are reported annually. DNA technology is a powerful tool in identifying assailants. However, it is not routinely used in sexual assault investigations due to insufficient government support to cover the high cost of DNA testing and the absence of a national system for sample collection, handling, storage, and DNA testing of biological evidence.

Data on likelihood ratios of two-person DNA mixtures interpreted using semi- and fully continuous systems.

In the paper, "Probabilistic approaches to interpreting two-person DNA mixtures from post-coital specimens" [1], we analysed 102 two-person DNA samples from simulated mixtures and male-female and male-male post-coital specimens. We report here data on profile characteristics of these samples and likelihood ratios (LRs) generated using semi- and fully continuous systems. Both log LRs from true and non-contributor tests are presented.

Probabilistic approaches to interpreting two-person DNA mixtures from post-coital specimens.

Biological samples submitted for sexual assault investigation typically involve mixtures of DNA from the victim and the assailant/s. Providing a statistical weight to such evidence may be mathematically complex and may be affected by subjective judgment of a human analyst. Software tools have been developed to address these issues.

Allele frequencies of 23 autosomal short tandem repeat loci in the Philippine population.

We characterized diversity and forensic descriptive parameters of 23 autosomal STR loci (CSF1PO, D13S317, D16S539, D5S818, D7S820, TPOX, D18S51, D21S11, D3S1358, D8S1179, FGA, TH01, vWA, D1S1656, D10S1248, D12S391, D2S441, D22S1045, D19S433, D2S1338, D6S1043, Penta D and Penta E) among 167 unrelated Filipinos. The most variable autosomal STR loci observed is Penta E (observed heterozygosity: 0.9222, match probability: 0.