Fig. 4From: Integrating presumptive and confirmatory semen tests into DNA profiling of sexual assault evidence: a Philippine exampleA proposed workflow for semen detection in sexual assault samples. Light and dark blue shapes indicate presumptive and confirmatory tests, respectively. Superscript a indicates samples with fecal material should be processed immediately or otherwise kept in cold storage. Superscript b indicates if multiple samples from a case were tested, and only those with the strongest positive signals may proceed to DNA typingBack to article page