Home » Uncategorized » New method extracts fingerprints from fabric
clothesprint-1

New method extracts fingerprints from fabric

Researchers may soon be able to lift fingerprints from clothes worn by the victims of crimes, according to the University of Abertay Dundee and the Scottish Police Services Authority.

After refining the method used to lift fingerprints from plastic and glass, they’ve been able to lift photo-negative-style prints from several fabrics, with enough detail to identify the print donor on silk, nylon and polyester.

The method is called vacuum metal deposition, and works by placing the fabric in a vacuum chamber where gold and zinc are evaporated over the fabric in a two-phase process. The zinc collects over the gold film on the fabric, attaching to the gold where no fingerprints are present. The result is a clear palm print of unobscured fabric that shows through the grey metal coating the rest of the fabric.

Though only about 20 percent of the population consistently leave detailed prints due to different skin types, the method could still be used to identify whether a victim was pushed or pulled, similar to using tracks in the snow or mud to deduce what happened during a crime.

“An impression of a palm print on the back of someone’s shirt might indicate they were pushed off a balcony, rather than jumping,” said Paul Deacon, fingerprint unit manager at the Scottish Police Services Authority. Looks like Langston and crew will soon have a new weapon in their CSI arsenal!

[Gizmag]

About Raggy Jin

Check Also

wii-oculus-rift-hoverboard

Try Oculus Rift And Wii To Roam Around On The Back To The Future Hoverboard

Check out how you can fly in virtual space by using an Oculus Rift and a Wii Balance Board.

131129-amz

Amazon Appstore for Android Holiday Deals, Including Free Apps

There are tons of deals from the Amazon Appstore that will be offered starting now and throughout the holiday shopping season. They say that they will have "hundreds of titles that are eitehr free... or available between 50-90% off" the regular price.

131129-google

Black Friday: Google Play Store Apps, Games and Content on Sale All Weekend

Case in point, if you head over to the Google Play Store right now, you'll find that Google is celebrating all Cyber Weekend with discounts on all sorts of content. This includes many popular apps and games

131129-gtab

Black Friday Deal: Samsung Galaxy Tab 3 10.1-Inch for $100 Off

Did you manage to score any epic Black Friday deals this morning? Are you still ...

131128-diy

Arduino Co-Creator Releases Plans for $200 DIY Mobile Phone

Mellis was one of the people who came up with the now hugely popular Arduino platform and now he has come up with plans for people to build their own cell phone for about $200 in parts.

131128-apple

No Discounts for Apple Black Friday, Just Free Gift Cards

If you were hoping to save yourself some cash as you brave the Black Friday shopping crowds, you'll want to go somewhere other than the official Apple Stores.

  • Eric

    It truly is remarkable what scientists are developing now. Its a shame the main CSI unit in the UK is getting its budget cut though, all these possible breakthroughs in investigations and not enough money to implement the latest groundbreaking leads.