Dr. Mike uses GooPrint to develop fingerprints on the sticky side of tape. Order products at LynnPeavey.com. If you want to schedule training for your department, go to www.ForensicEducation.net
Hi Michael! The technique you showed us didn’t work. But we tried another method. We put the tape under water a few times and it revealed beautiful babies. Thank you quand même :)
@@profmccutch we only treated our fingerprints with Sticky-Side Powder and we put it under water after. We are students in forensic science at Université of Québec in Trois-Rivières and we are working on a project (revealing latent prints with Powder). We did a video of the technique we used. The technique is in the link below ! Thank you for your answer! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9MAon8LiqBk.html
I'm wondering how this could be applied, in a practical sense. Assuming that tape has been applied to a common UPS box, an envelope, etc., How could we release the adhesive enough to expose the surface on twitch the latent print was left, without dissolving so much of the adhesive that the latent print is destroyed? Maybe this is only intended to be used on tape that has been applied to non-porous surfaces. But I immediately thought of two useful scenarios in which development of prints on tape would be useful: threatening letters and packages containing illicit substances. Both of which have tape applied to fragile, porous surfaces (or semi-porous).
There are two options. Let’s say you are trying to get fingerprints off a drug package that he been wrapped I. Duct tape. If you send the package to a lab, they will freeze the tape apart then apply a wet powder for development. If you didn’t have that option, you could use the product UnDo. It separates the tape and then prints can be developed. I will say, the freezing process does work better in developing prints but I have been successful using UnDo as well.
@@profmccutch Freezing! That's brilliant! I would have never thought of that. Do you happen to know if a common residential freezer would be sufficient or if they are freezing at a point specific to the adhesive?
Yes, the thinner tape in the video is a paper tape. I think this may be the same as sticky side powder technique. Tell me more. It may just be a different terminology.
@@profmccutch We use the sticky side powder of the brand BVDA but from experience I know that this powder works too well on e.g. masking tape. The tape does not rinse after a few seconds. Even on less solid tapes this sometimes happens so we use black wet powder rather than sticky side.
