1. Special Agent-Forensic Scientist II, Tennessee Bureau of Investigation, 617 W. Cumberland Ave., Knoxville, TN 37902, US.
2. Associate Professor, Ohio University, OH, US.
3. National Institute of Standards and Technology, Gaithersburg, MD, US.
4. FBI Laboratory, Quantico, VA, US.
5. The Department of Forensic Sciences, The George Washington University, Washington, DC, US.