"If you know where exactly a perpetrator touched something, then yeah, you could swab something. But most of the time we don't know so it's better if you have something that is cloth or fabric or a rope, some sort of ligature, bricks and rocks, things like that, wooden boards, I would always recommend the M-Vac versus swabbing just because I've seen the results! It's not just a theoretical thing. I know what it can do. I know you can get some pretty amazing results using M-Vac. So the more I use it the more I'm a proponent of it for sure." --Suzanna Ryan, Laboratory Director/Forensic DNA Analyst, Pure Gold Forensics
With what types of evidence has the M-Vac been successful or where does it work well? The obvious answer is porous or rough surfaces, but it also works well on some surprising substrates. It has yielded meaningful, third-party data from these evidence types.
* Denotes that the item has yielded meaningful profiles in casework.
? Indicates the item was analyzed in university research.
? Means the item was studied by either the FBI or an independent agency or lab, either for research or validation purposes.
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