Big changes for 2016:
Evidence Technology Magazine
is now published exclusively in digital format. Read more here!

ON THE COVER: A known friction ridge print standard is kind of the "yang to the yin" of latent print evidence. Neither really has much value without the other. The author explains the proper technique, methods of capture, and quality control for collecting ten prints. See full article here.

Read the Spring 2016 Issue online now!

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Editorial: Time for a Change

Thirteen years ago, Evidence Technology Magazine Publisher and Co-Founder Gary Gulick wrote in the inaugural issue’s editorial, “It’s about time somebody did this!” He was referring, of course, to the concept he and I had developed: a publication dedicated exclusively to evidence collection, processing, and preservation.

Bullet trajectory analysis using photographs

Bullet trajectory analysis is dependent upon a number of variables that include bullet design, velocity (initial and terminal), angle of departure, angle of impact, distance of travel, target composition, temperature, relative humidity, and altitude.

NIST Corner: Your Voice Is Evidence

A call comes into the emergency call center and, in the background of the call, the events of a crime being committed can be heard. While the dispatcher determines the level of help needed, a recording is automatically captured. If needed, a speaker recognition expert can compare the speech in the background of the E911 call to a police interview with a person of interest. The expert would seek to confirm that the person heard during the criminal act captured on the E911 call was in fact the same individual in the interview.

Identification of Illegal Drugs with 1064nm Handheld Raman

When criminal investigations are at stake, there is no margin for error and the demand for fast and accurate mobile techniques for the detection and identification of narcotics is higher than ever before. “Designer” drugs, which are typically contaminated with degraded products, impurities, and unreacted precursors, are entering the market at an alarming rate and are often difficult to detect using traditional methods.

Making Mobile Data Work Harder, Solve Cases Faster

Today, most bad guys don’t commit crimes using computers. They’ve all gone mobile. Smarter, more powerful mobile devices yield a potential treasure trove of evidence for investigators and prosecutors alike. Critical details from browser history searches, messaging apps, call logs, and social media posts often reveal what suspects and victims were doing before, during and after a crime was committed. It has never been more important to have the right mobile forensics tools at the ready.

Mechanisms of DNA Transfer

An excerpt from Using Forensic DNA Evidence at Trial, written by Jane Moira Taupin.

Expert Q&A: Jane Moira Taupin

A quick interview with the author of Using Forensic DNA Evidence at Trial: A Case Study Approach.

Raising Your Standards

Capturing known friction ridge print standards of best possible quality.

Planning a Digital Forensics Lab

So, you want to build a digital forensics lab? Maybe you have been tasked with researching how to put together a lab or maybe you have to actually do it but simply don’t know where to begin. Well, we are going to explore some options at your disposal and give you a basic foundation on some of the issues you will need to consider.

Ground Penetrating Radar

Ground penetrating radar narrows forensic investigation search areas, eliminates needless excavation, and speeds explorations.


Item of Interest

The language barrier between English-speaking investigators and Spanish-speaking witnesses is a growing problem. (Updated 28 February 2011)