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A summary
of the history and
services of
BAC-Tracker International, Inc.
BAC-Tracker International, Inc. is a consulting
company providing forensic alcohol litigation
services internationally to the criminal justice
community. BAC-Tracker International, Inc. manufactures,
distributes, and supports software, instructs training courses,
oversees its certification program, and provides expert
witness testimony and consultation for civil and
criminal litigators. Headquartered in Atlanta,
Georgia, USA, BAC-Tracker International, Inc. is supported by a
Faculty Advisory Board whose members have years
of experience in forensic alcohol toxicology,
medicine, and law and are responsible for
reviewing and advising the technical aspects and
content of the BAC-Tracker software and
certification exams. BAC-Tracker International,
Inc. is most well
known in the forensic discipline for keeping
pace with the demands of the criminal justice
system through its training
courses, certification program, and software
which facilitates advanced technological
assistance to the forensic toxicology community.
- History -
When BAC-Tracker International, Inc. was established in early 2007,
its sole service was manufacturing the only
known commercial software that provided blood
alcohol concentration (BAC) estimations by
employing multiple formulae accounting for the
variation and uncertainties in alcohol
metabolism – absorption, volume distribution (Vd),
and elimination. By late 2007, BAC-Tracker
software had evolved through multiple versions
by expanding its capabilities and features at
the request of its users. By early 2008, BAC-Tracker
International, Inc.
had quickly gained popularity necessitating the
expansion of its services to offer training on
the proper use of BAC-Tracker software and establish a certification program
recognizing proficiency among its users. By mid
2008, BAC-Tracker International, Inc. added yet
another service to its list and began offering
various levels of expert consultation by
seasoned forensic toxicologists. Today, BAC-Tracker International, Inc. has reached
international markets and is leading the way in
working towards meeting the demands imposed by the National
Academy of Science (NAS) calling for the
forensic discipline to account for and report
uncertainty and potential error in theoretical
calculations such as BAC estimations.
- Faculty Advisory Board -
In early 2009, BAC-Tracker International, Inc. established a Faculty
Advisory Board consisting of well known
individuals having expertise ranging from
forensic toxicology, medicine, and law. The board is charged with
technically advising and oversight of the
features and content incorporated in the BAC-Tracker
software and certification exams.
The 2011 board consists of Thomas "Tom" E. Page,
Law Enforcement Consultant, Drug Recognition
Expert Emeritus, USA; A. Robert W. Forrest,
MB, ChB, Honorary Professor of Forensic
Chemistry, University of Sheffield, UK; Warren
Diepraam, Assistant District Attorney, Chief
Prosecutor of Trial Division and Vehicular
Crimes, NHTSA/NAPC Prosecutor Fellow, Montgomery
County District Attorney's Office, Conroe, Texas, USA;
Dr. Edward Ogden, PSM, MA, MBBS, BMedSc, DipCrim,
FRACGP, FAChAM, Forensic Medical Consultants,
Doncaster, Victoria, Australia; and Ted Vosk,
JD, Attorney/Consultant of Counsel, Cowan, Kirk,
Gaston, Bothell, Washington, USA.
Past Board members consist of
Chip Walls, Technical Director, Forensic
Toxicology Laboratory, Miller School of
Medicine, University of Miami, Miami, Florida,
USA; Ashraf Mozayani,
Pharm D., Ph.D., D-ABFT, Houston, Texas, USA; and
Patrick Barone, Barone Defense Firm, Birmingham,
Michigan, USA.
- BAC-Tracker Software -
BAC Tracker software is a computer analysis
program that allows for a more comprehensive
estimation of blood alcohol concentration (BAC)
using every major published formulae accounting
for volume distribution. BAC Tracker employs the
latest scientific data for more accurate and
balanced results in the court room when
estimating BAC. BAC Tracker combines
professional software development with the
expertise and experience of seasoned individuals
having backgrounds in forensic toxicology,
medicine, and law.
Three separate types of extrapolation reports –
Anterograde Alcohol Extrapolation Report,
Retrograde Alcohol Extrapolation Report, and
Alcohol Quantification Report – (506
separate reports) can be generated within
seconds using BAC Tracker which are derived from
every major published formulae accounting for
volume distribution and calculated against every
combination of absorption and elimination rates.
Data input requires only the individual’s
gender, age, weight, height, and either known
drink consumption information or a known BAC/BrAC
reading. The software will automatically run the
data against six different volume distribution
formulae (and any combination thereof) which
take into account the individual’s gender, age,
weight, height, body mass index, percent body
fat, water content in blood, water content in
fat-free body mass, total body water, multiple
non-linear rates of absorption, and multiple
separate rates of elimination. Further data
entry can be applied to both the rate of
absorption to account for factors affecting
gastric motility and the rate of elimination by
applying broad or narrow ranges to account for
inter- and intra-individual variations in the
human population. The result is the most
comprehensive estimation of blood alcohol
concentration while accounting for every known
source of uncertainty.
Formulae
The formulae incorporated in BAC-Tracker
software were scientifically derived, peer
reviewed and published beginning in 1932 with
the latest in 2007 by Widmark (1932), Watson et
al (1981), Forrest (1986), Seidl et al (2000),
Ulrich et al (1987), and Posey and Mozayani
(2007).
- Training Program -
The BAC-Tracker International, Inc. training
program was launched
in early 2008 to further support potential requests for additional training
by its user base at the time. BAC-Tracker
International, Inc. offers customizable training
courses geared towards the various disciplines
involved with alcohol litigation. These
course vary according to the needs of the
organization, but include some focus on forensic extrapolation using BAC Tracker software. Upon successful
completion of this course and exercises,
participants will learn and be able to
extrapolate any alcohol related case using every
published Vd formula: Widmark (1932), Watson et
al (1981), Forrest (1986), Seidl et al (2000),
Ulrich et al (1987), and Posey and Mozayani
(2007). Review and oversight
of the training is provided by
the Faculty Advisory Board.
- BAC Tracker International, Inc. Responding
to the Concerns of the NAS 2009 -
BAC-Tracker
software has quickly become accepted into the forensic
toxicology community following the 2009 report
issued by the NAS entitled “Strengthening
Forensic Science in the United States: A Path
Forward”. The NAS report identified shortfalls
in the forensic science discipline and listed
the lack of standard reporting and testimony by
many forensic laboratories in the United States
as a major concern. The report states that
“forensic reports, and any courtroom testimony
stemming from them, must include clear
characterizations of the limitations of the
analyses, including measures of uncertainty in
reported results and associated estimated
probabilities where possible”.
Following this report, BAC-Tracker software was
welcomed by the criminal justice system as it is
the first known commercial software to attempt
to meet
these demands posed by the NAS report.
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