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M-Vac Systems
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M-Vac Systems is helping investigators solve more crime through better forensic DNA collection
M-Vac Systems is helping investigators solve more crime through better forensic DNA collection

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We've known this and been telling crime labs and LE agencies for years, but it's nice to see a robust study on it. Unless there is ample DNA material, swabbing is not an efficient collection method. Trace or touch DNA scenarios absolutely warrant using the M-Vac system.


#forensic #DNA #investigation #swab #MVac #murder #rape #assault #crime

https://www.forensicmag.com/news/2018/06/dna-swabs-test-good-absorption-less-50-percent-recovery
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Before long the Bardole Method will be a common term among all law enforcement and forensic scientists! It's a proven and simple method to collect forensic DNA off of small objects, and like many methods and inventions, it was inspired by a hard working person who was frustrated and knew there had to be a better way! We dedicate this page to West Jordan PD's Senior CSI Francine Bardole, who is as intuitive as she is focused on doing the best job she can, always!

#DNA #Bardole #Method #MVac #forensic #investigation #shell #casing #murder #driveby #shooting #collection

http://www.m-vac.com/…/resear…/bardole-dna-collection-method
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The M-Vac took center stage last night in the A&E TV show Marcia Clark Investigates the First 48. The episode focused on the Chandra Levy cold case homicide, in which the investigators concluded the show with the stark reality that unless they can get foreign DNA from Ms Levy's clothes the case may never be solved. So how do you collect DNA from clothes that have been laying out in the forest for a year? The ONLY way is the M-Vac system. IF there is viable DNA on those clothes, at least there is a chance with the M-Vac.


Very interesting show! If you want to see just the M-Vac part (along with our friend and Advisory Board member Suzanna Ryan) then fast forward to the last 10 minutes of the show!


#DNA #Chandra #Levy #coldcase #homicide #DC #murder #MVac #investigation #Marcia #Clark


https://www.aetv.com/shows/marcia-clark-investigates-the-first-48/season-1/episode-3
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The M-Vac system, a technology that was once used in the food industry, is now being used to solve murder, rape and other unsolved cases across the country.


#MVac #DNA #murder #homicide #rape #assault #coldcase #investigation #police #sheriff


https://www.wwaytv3.com/2018/04/02/unsolved-law-enforcement-looking-into-new-forensic-technology/
WWAY TV, LLC
WWAY TV, LLC
wwaytv3.com
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"Investigators said they are trying to get the killer's DNA off the boulder."


If this doesn't SCREAM M-Vac I don't know what does! Like the Krystal Beslanowitch case, there is no tool that will collect more DNA material off of that rock than the M-Vac system. We have contacted the CHP about using the M-Vac on that rock, so hopefully we can help them find the suspect(s) that did this. Absolutely tragic.


#DNA #boulder #Pasadena #freeway #overpass #death


https://www.cbsnews.com/news/boulder-pasadena-overpass-kills-man-134-freeway/
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Local detectives look to new DNA technology, including the M-Vac system, to solve decades-old murders http://kiro.tv/2ow4UrI

#DNA #MVac #coldcase #investigation #forensic #technology #murder
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King’s College in London Finds M-Vac Collects 75% More DNA From Bricks Than Double Swab

Highlights

•The M-Vac® was superior to double swabbing for DNA collection from brick surfaces.
•Double swabbing collected more DNA than the M-Vac® on non-porous tiles.
•Cell-free DNA is lost in the filtration step of M-Vac® processing.
•The M-Vac® is a useful option for DNA collection when traditional methods fail.

Abstract

Collecting sufficient template DNA from a crime scene sample is often challenging, especially with low quantity samples such as touch DNA (tDNA). Traditional DNA collection methods such as double swabbing have limitations, in particular when used on certain substrates which can be found at crime scenes, thus a better collection method is advantageous. Here, the effectiveness of the M-Vac® Wet-Vacuum System is evaluated as a method for DNA recovery on tiles and bricks. It was found that the M-Vac® recovered 75% more DNA than double swabbing on bricks. However, double swabbing collected significantly more DNA than the M-Vac® on tiles. Additionally, it was found that cell-free DNA is lost in the filtration step of M-Vac® collection. In terms of peak height and number of true alleles detected, no significant difference was found between the DNA profiles obtained through M-Vac® collection versus double swabbing of tDNA depositions from 12 volunteers on bricks. The results demonstrate that the M-Vac® has potential for DNA collection from porous surfaces such as bricks, but that alterations to the filter apparatus would be beneficial to increase the amount of genetic material collected for subsequent DNA profiling. These results are anticipated to be a starting point to validate the M-Vac® as a DNA collection device, providing an alternative method when DNA is present on a difficult substrate, or if traditional DNA collection methods have failed.

NOTE FROM M-VAC SYSTEMS: Although we have not obtained the raw data, methods used etc, we find these results very exciting as well as expected. Clearly the data is significant enough for the police in the UK and around the world to recognize how much they need this new forensic DNA collection capability. The fact that the double swab collected more DNA from the non-porous tiles is not surprising nor a revelation, especially if the DNA material was concentrated in a relatively small area. We rarely recommend using the M-Vac over the swab in that scenario. Also, cell-free DNA is far too small to be captured on the filter we commonly use (.45 and .20 micron PES filters) so that is not a surprise either. Most of the time the M-Vac collects enough cellular DNA that the free DNA is insignificant anyway and does not affect the quality of the DNA profile. The bottom line is the M-Vac has now been successfully tested by research universities in the US, the UK, Sweden, and more testing is going on in Australia and elsewhere by police agencies, crime labs and research facilities. And, once again, the M-Vac system has shown it is a valuable tool for generating DNA profiles where the other collection methods cannot!

#DNA #MVac #KingsCollege #Research #doubleswab #swab #brick #forensic #profile
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