Essay Example About Latent Fingerprints Investigation.
The fingerprint discipline has never claimed forensic fingerprint experts (latent print examiners) are infallible. For over four decades, the IAI's certification program has been issuing certification to those meeting stringent criteria and revoking the certification for errors (quality assurance problems) such as erroneous identifications made by latent print examiners.
Fingerprint Evidence Jose Tapia Lt. Lathrop CO8 June 10, 2013 Introduction The Study of fingerprints became one of the most important aspects in criminal investigations and forensic detections. This is because fingerprint identification is far too unique, and its success rate outperforms even DNA identification.Fingerprints identified at crime scenes fall into three categories, latent, plastic.
Fingerprints have a key role in criminal investigations and are the most commonly used form of evidence worldwide. Significant gaps remain however, in the understanding of fingerprint chemistry, including enhancement reaction mechanisms and the effect of environmental variables and time on composition.
Latent prints do not react with amido black or LCV. A mixture of latent print residue and diluted blood caused the residue to exhibit a red color on an inconsistent basis (a “faux blood mark”). A negative blood mark is an invisible mark seen when a latent mark is exposed to blood (a void or halo forms around the latent fingermark).
Fingerprints Essay. 2664 Words 11 Pages. Show More. Fingerprints are made as a result of pressure from amniotic fluid across the surface of hands as they develop while in utero. The growth and rate of the fingers influence the formation of the prints and after twenty four weeks of development, fingerprints are locked in and the shape stays the.
Latent prints, which are basically fragments of fingerprints left by body fluids, oil residue or sweat at the crime scene, are collected using dusting, photography, or superglue fuming. Through these methods of latent prints collection, forensic experts can later match suspect’s known prints to the latent fingerprints found at the crime scene.
Latent vs. Patent Prints. There is more than one way prints are left on a surface, and forensic science technicians classify and analyze them differently. The most common types of prints include latent and patent prints. Patent prints are impressions of prints usually transferred using some type of fluid or chemical, like blood or paint.