
Billy Cox
Management Services
srch4187@live.com
Billy retired from the Chula Vista Police Department
(California) after 34 years of military, federal and municipal law
enforcement. In his law enforcement career, Billy was involved in Patrol
Operations, Crime Scene Investigations, Auto Theft Inv, Jail Operations,
Research & Development and Logistical Support. Billy became a CVSA Examiner
in 1998 and since that time has conducted over 1500 examinations in every
subject from homicide to backgrounds.

Professor James Chapman - Criminologist
Education & Standards
jchapman@stny.rr.com
Professor Chapman is Professor Emeritus, former Director of
the Criminal Justice Program, and the Forensic Crime Laboratory at the State
University of New York, Corning. Prof. Chapman served from 1984-2000 as the
Executive Director of the Southern Tier Law Enforcement Academy Zone 12, New
York State. Prior to his career in education he was in law enforcement and
service in the United States Marine Corps. Prof Chapman is a nationally and
internationally known expert in the services of the Voice Stress Analysis
(VSA). He has conducted VSA Testing since 1971. Utilizing the CVSA from
1989, Prof. Chapman has conducted extensive forensic interviews and
interrogations research utilizing Voice Stress Analysis and has published
his findings. Prof. Chapman is a consultant to numerous local regional and
federal law enforcement and criminal justice agencies.

Harry Bennigson
Training
Harryb458@hotmail.com
Harry Bennigson is recently retired from the Vallejo,
California, Police Department and is currently serving with the Napa County
Sheriff’s Office. In 1995, he was the first police officer from the Vallejo
PD to be trained as a CVSA Examiner. Since then Harry has performed well
over 1,000 CVSA examinations, ranging from fraud to homicide. Harry states
that the CVSA allowed him to close a greater number of criminal cases and
obtain confessions from suspects, as well as clear numerous individuals
accused of crimes, who were in fact innocent. Harry is the past president of
the Pacific Association of Voice Stress Analysis.

Gene Shook
Professional Relations
gs662@aol.com
Gene spent over 30 years in the law enforcement community,
serving primarily with the Prince Georges County, MD, Police Department. He
has extensive experience in a number of investigative disciplines, and
specialized in homicide investigations for many years of his career. Gene
has conducted hundreds of CVSA examinations including homicide, internal
affairs, and background investigations, among others. Gene has also taught
several specialized investigative courses within the law enforcement
community during his career. Gene was certified by the NITV as a CVSA
examiner in 2002.
NACVSA REGIONS & REGIONAL DIRECTORS