FBI Research
Why M-Vac

FBI Research

The FBI compared the M-Vac™ wet-vacuum-based collection method to a wet-swabbing method on a variety of surfaces.  In July 2020, they published some of their research.  Twenty-two substrates, 2 non-porous and 20 porous, were evaluated including household items, construction materials and automotive items.  The full article along with several great graphs of the data and details regarding the research and findings can be found at the link below.  If you are short on time, the graphs of their results are near the end of the article.

FBI Comparison Study published in Journal of Forensic Sciences

The NIH (National Institutes of Health) has also published this study on their website:

FBI Comparison Study published in the National Library of Medicine 


1  McLamb JM, Adams LD, Kavlick MF. Comparison of the M‐Vac® Wet‐Vacuum‐Based Collection Method to a Wet‐Swabbing Method for DNA Recovery on Diluted Bloodstained Substrates. J Forensic Sci 2020; https://doi.org/10.1111/1556-4029.14508

Note: The references to commercial manufacturers in the article does not imply endorsement of the FBI or the U.S. Government.  In addition, the views expressed are those of the authors and do not necessarily reflect the official policy or position of the FBI or the U.S. Government.