This article... keeps repeating phrases about criminals, authorities, safe-houses, solving crimes. Feels off. I was expecting this to focus on the lab techniques, feasibility, technical details. It jumps straight from forensic application details to results without the in-between. I think the in-between is the interesting part.
It's as if they took the token sentence that goes in an abstract about potential applications, and turned it into the meat of the article.
It sounds like they are using standard extraction kits, them analyzing with RT-PCR.