Where It Works
"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.
- 2x4 boards*
- Armoire*
- Bat handle*
- Bedding - Pillow*, sheets*, blanket* and comforter*
- Bricks*?? - Casework - University research - Validation - Study
- Carpet?
- Carpet - Automotive Carpet*? - Casework - Study
- Carpet - Carpet Padding?
- Carpet - Outdoor Carpet?
- Cinder block*?
- Clothing - 43-year-old evidence*, other old evidence*
- Clothing - Blood soaked clothing (Y-STR)*
- Clothing - Cotton T-Shirt?
- Clothing - Denim swatches?
- Clothing - Halter top*
- Clothing - Knit Cap?
- Clothing - Pants*
- Clothing - Pants pockets*
- Clothing - Panties*
- Clothing - Scarf*
- Clothing - Shirt?
- Clothing - Ski mask*
- Clothing - Socks*
- Clothing - Sweatshirts*
- Clothing - Water soaked clothing*
- Drywall - Painted flat?
- Drywall - Painted satin?
- Drywall - Painted semi-gloss?
- Drywall - Painted gloss?
- Duffle bag*
- Environmentally aged clothing* - Casework 1 - Casework 2
- Firearms*
- Gloves - Latex*
- Gun sock*
- Knots*
- Ligature*
- Molotov cocktail wick*
- Pants pockets*
- Rocks*? - Casework - Validation
- Ropes*
- Rope - hemp?
- Rope - nylon?
- T-Shirts*
- Tape - Packing Tape - including the sticky side*
- Tape - Duct Tape?
- Tile?
- Tool boxes*
- Tools*
- Towel*
- Toy stuffed animal*
- Vehicle seat*
- Vehicle carpet?
- Vehicle cushion collar?
- Vehicle cushion insert?
- Vehicle trunk liner and mat?
- Water soaked clothing*
- Wigs*
- Wood - Pressure-treated?
- Wood - Oak?
- Wood - Pine?
- Wood - Plywood?
- Zip ties*
* 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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