Forensic Magazine August/September 2014August/September 2014 Digital Edition


Analysis of Blood Alcohol by Headspace with Simultaneous GC-FID and MS Detection
Zhuangzhi “Max” Wang, Ph.D.; Richard R. Whitney, Ph.D.; Nicole M. Lock; Laura Chambers
Determination of Blood Alcohol Content has been a standard analytical method in criminal labs for many years. Recently, however, additional compound identification provided by matching the ethanol mass spectrum to a library spectrum, in addition to RT, has proven to offer an additional level of confirmation. This article describes BAC analysis using a GC-FID in parallel with a mass spectrometer for positive compound identification.

Processing For Latent Prints: Looking To Patrol For Help
Detective William Oakley
Most of us know you should attempt to develop latent prints as soon as possible. When latent prints are deposited on a surface, nearly 99% of the print is composed of water. The water begins to evaporate and the print dries out. For this reason, it is essential to have first responding officers trained in the development of latent prints when no one else is available. 

Kern County Resolves the DNA Mixture Crisis
Mark W. Perlin and Kevin W.P. Miller
The forensic community is discussing genotype probability modeling as a way to interpret DNA mixtures. The Kern Regional Crime Laboratory (KRCL) was an early adopter of probabilistic genotyping for mixture interpretation. KRCL's adoption of these computer methods enables Kern County to use complex mixture evidence in routine casework, and easily report their match results.


New Technologies Help Forensic Labs Overcome Today’s Challenges
Rebecca Waters
In a question-and-answer session with Robin Gall, Ph.D., Senior Product Manager of STARLIMS Forensics product for Abbott Informatics, find out how the latest forensic technologies are helping forensic laboratories improve productivity, efficiency, and quality.

Streamlining the Digital Forensic Workflow: Part 1
John J. Barbara
It has now reached the point that it is no longer practical for an examiner to forensically analyze each and every piece of evidence. Depending upon the alleged crime, often the incriminating evidence can be found in an e-mail, a document, the browser history, an SMS, or some other source. This leads to the obvious conclusion that examiners are going to need a new approach to streamline their workflow.

Crime Scene Photography Essentials
Dick Warrington
If you’re an officer in a small department without a crime scene unit, you may be responsible for documenting everything from thefts to homicides. For each scene, you need an accurate record. You don’t need to be an expert to take crime scene photographs or testify in court about these photographs, but you do need to know the proper way to photograph and document a scene.

Burn Notice
Vince McLeod, CIH 
Flammable substances are those that can easily catch fire and burn in air. They may be solid, liquid, or gaseous, but this article will focus on liquids because according to Prudent Practices, the most common fire hazard in the typical laboratory is a flammable liquid or the vapor produced by one. And for a majority of laboratories, flammable liquids are the most commonly stored material and make up the largest volume of hazardous material.

Morgue Design: The Good, the Bad, and the Ugly
Susan Halla
Over the years we have been invited in to see many morgues of various ages, designs, and with varying wear and tear. We have designed and observed the construction of several facilities and have been invited to tour other new facilities. There are many lessons to be learned in each of these facilities. Some of these are lessons on what to implement in your own facility, while many of these are examples of what not to emulate.