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Fingerprint Evidence

Fingerprints have long been one of the best forms used by law enforcement as physical evidence. Here you will find the different methods of processing fingerprints and articles relating to this procedure.

Crime Lab Partnership Doubles DNA Testing Capacity

The FBI Laboratory has entered into a partnership with four regional crime laboratories that will double the capacity to offer free mitochondrial DNA testing to state and local law enforcement agencies.

Faulty Fingerprints Study Debunks 'Zero Error' Claim

While forensic scientists have long claimed fingerprint evidence is infallible, the widely publicized error that landed an innocent American behind bars as a suspect in the Madrid train bombing alerted the nation to the potential flaws in the system.

New Fingerprint Detection Technology Developed

University of California scientists have developed a novel method for detecting fingerprints based on the chemical elements present in fingerprint residue.

Atmospheric Superglue Method

Methods, safety guidelines and techniques are outlined for using superglue fuming for effective latent print development.

Basic Crime Scene Processing Techniques Using Fluorescent Powders

Fluorescence-based fingerprint techniques have become increasingly popular. This article describes the different types of powders and techniques for using them

Black Powder Processing

Techniques for using old-fashioned black powder for fingerprint development.

Cyanoacrylate (Superglue) Fuming Tips

Review tips for using the cyanoacrylate fuming method for developing latent fingerprints.

Developing Prints on Adhesive Surfaces

Review pictorial and written instruction on the process of developing prints on adhesive surfaces.

Enhancement of Latent Prints in Blood

Many of the techniques for developing "normal" latent prints do not work suitably on prints in which a significant portion of the latent print residue is blood or blood serum. This article provides techniques used for developing latent prints, where blood is present.

Fingerprint Evidence

A brief explanation of the techniques involved in gathering and using fingerprint evidence.

Fingerprinting the Dead

A look at methods used to successfully fingerprint the dead.

Hidden Evidence: Latent Prints on Human Skin

As difficult as it may be to obtain prints from human skin, this article reviews some techniques and discusses the importance for law enforcement to be willing to try to obtain this most important evidence.

Instructions for Rubber-Gelatin Lifters

Rubber-gelatin lifters are especially developed for the lifting of fingerprints, footprints, dust marks and micro traces. This article offers pictorial and text instructions on how to use them.

Iodine and Silver Nitrate Processes

Although both methods have largely been supplanted by more sophisticated chemical techniques, each still has a place in the repertoire of the well-trained latent print technician.

Is Fingerprinting a Science?

This article discusses if the successful procedure of fingerprinting is an art of a science, or both.

Latent Print Powders (How, When and with What?)

This article provides information about the different types of dusting powders to use under which circumstances, and how and when to best use them.

Latent Prints in Dust

Crime scene experts often find prints in dust a nightmare. This article provides easier, simpler methods of obtaining these extremely important latents.

Magnetic Powder

This article demonstrates the flexibility that magnetic powder offers to crime scene technicians.

Ninhydrin Processing

This article discusses safety measures and techniques for using this most productive and cost-effective method of developing latent fingerprints on paper.

On the Skin-Furrows of the Hand

This was one of the first articles on fingerprinting, impacted the worlds view on fingerprinting as a source for viable identification.

Processing Guide for Developing Latent Prints

A list of processes and procedures for different surface types. Also included are processing sequences that specifically involve prints that are left in blood along with details for implementation in Latent Print Unit (LPU) of the FBI Laboratory.

Sequential Processing of Latent Prints

"Sequential Processing" is the use of two or more methods in a sequence designed so that each technique used avoids the destruction of fingerprint residue for subsequent methods. Two common surfaces will be discussed with a detailed sequence of several methods for each surface.

Skin Furrows of the Hand - 1880

This was a response to the first article ever written about fingerprinting. Published in 1808, it is of historical interest, for those interested in the field of fingerprinting and crime scene investigation.

Small Particle Reagent

Latent prints containing oily or sebaceous material can be developed dependably on wet surfaces using a suspension known as "Small Particle Reagent" or "SPR" for short. This article reviews the best methods and techniques for using SPR.

The Cyanoacrylate Fuming Method

A look at the cyanoacrylate fuming method (often called the super glue method) of developing latent fingerprints.

The History of Fingerprints

A look at different methods in history used to identify criminals, how fingerprinting changed criminal investigation, and the people who impacted the acceptance of fingerprinting for identification purposes.

The Reliability of Fingerprint Identification - A Case Report

The judge who decided the original Llera-Plaza motion, which is discussed and critiqued in the following article, reversed himself on March 13, 2002, holding that expert evidence of a fingerprint "match" was admissible.

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