Fingerprint and Other Impressions

Is it possible to Find Fingerprints on Human Skin and Body? When and When Not? Fingerprints can also be found on human skin but many forensic experts believed their development to be a challenging task. They are usually latent (not seen naked eye), and rarely visible (from blood, dirt, paint, etc.) marks. Though skin is […]

Fingerprints on the plastic surface have more ridge details when compared to porous surfaces such as fingerprints on clothes. However, as the nature of plastic is a non-porous substrate, the chance of finding finger marks is less as compared to semi-porous surfaces such as fingerprints on paper. Latent fingerprints on plastic surfaces can be developed

Acid Violet 17 is a triarylmethane dye that stains protein in blood to give a dark purple color and produces some fluorescence in the red and near-infrared region. It is one of the most recommended blood fingerprint enhancement methods on porous surfaces. Developed by: First proposed in 2001 by Sear and coworkers at Home Office

Acid Yellow 7 is an amino ketone dye that stains protein in blood to give a pale yellow color and produces a bright yellow fluorescence when illuminated with blue light (385 to 509 nm). It is the most widely used method for the enhancement of blood fingerprints on non-porous dark-colored surfaces. Developed by: The development

Fingerprints on clothes are difficult to develop because of their complex fiber distribution, weave patterns, and lack of finger residue. Some clothing is too coarse to retain fingerprints, while some retain them for a longer period of time because of the smoother and finely woven surface. If prints have enough finger residue to mark the

Developing fingerprints on leather articles can be tricky. All the different types of leather make developing finger marks a not sure thing. I decided to find out “can you get fingerprints from leather goods” and how to. Yes, fingerprints can be developed on leather goods using forensic powder and chemical methods. But, not all fingerprint

Magnetic powders are fine ferromagnetic powders applied to the latent fingerprint surface with a magnetic wand. It is a type of metallic powder that was introduced by MacDonell in 1962 along with Magna Brush. Note: Metallic powder is different from Magnetic Powders. All magnetic powders (eg: iron) are metallic powder, but all metallic powder isn’t