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The Scientific Working Group on DNA Analysis Methods, known as SWGDAM, serves as a forum to discuss, share, and evaluate
forensic biology methods, protocols, training, and research to
enhance forensic biology services as well as provide
recommendations to the FBI Director on quality assurance
standards for forensic DNA analysis.
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SWGDAM is currently comprised of dedicated forensic scientists,
from international, federal, state and local forensic DNA
laboratories as well as guests representing academia and other
Federal agencies. These forensic scientists serve as the DNA
technical leaders or Combined DNA Index System (CODIS)
Administrators for their laboratories,
and are able to offer the perspectives of practitioners in the
areas of nuclear and mitochondrial DNA technologies. SWGDAM is
also fortunate to have invited guests attend each meeting
representing academia, other Federal laboratories and
international agencies to provide their specific expertise in
areas such as mitochondrial DNA, population genetics,
statistics, and YSTRs.
The
responsibilities of SWGDAM are: (1) to recommend revisions, as
necessary, to the Quality Assurance Standards for Forensic
DNA Testing Laboratories and the Quality Assurance
Standards for DNA Databasing Laboratories; (2) to serve as a
forum to discuss, share, and evaluate forensic biology methods,
protocols, training, and research to enhance forensic biology
services; and (3) to recommend and conduct research to develop
and/or validate forensic biology methods. We hold semi-annual
meetings in January and July and our Committees meet more
frequently as issues arise.
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The predecessor group of
SWGDAM, the Technical Working Group on DNA Analysis Methods (TWGDAM),
held their first meeting in November 1988, as forensic DNA
technology was introduced in the United States. This first
meeting was hosted by the FBI Laboratory and included 31
scientists representing 16 forensic laboratories in the United
States and Canada. This first meeting was designed to bring
together those scientists who were engaged in validating this
new technology to share protocols and establish guidelines,
where appropriate. A subcommittee was formed to work on
suggested guidelines for laboratories conducting restriction
fragment length polymorphism (RFLP) DNA analysis. These
guidelines were published in the April-July 1989 issue of the
Crime Laboratory Digest (see Vol.16, No. 2, pages 40-59;
see also Crime Laboratory Digest Vol. 18, No. 2, April
1991).
TWGDAM
continued to provide a level of direction to the forensic DNA
community by issuing guidelines for a DNA proficiency testing
program and later for the newer DNA technology of polymerase
chain reaction (PCR). See Guidelines for a Proficiency
Testing Program for DNA Restriction Fragment Length Polymorphism
Analysis, Crime Laboratory Digest, Vol. 17, No. 3, pages
59-64, (July 1990); Guidelines for a Quality Assurance
Program for DNA Analysis, Crime Laboratory Digest, Vol. 18,
No. 2, (April 1991). Additional revisions were adopted in 1995;
see Guidelines for a Quality Assurance Program for DNA
Analysis, Crime Laboratory Digest, Vol. 22, No. 2 (April
1995).
The forensic
DNA community followed these guidelines when implementing their
DNA programs. As a result, the guidelines became de facto
standards and were recognized by courts as minimum requirements
for a quality forensic DNA analysis program. See, for
example, State v. Schwartz, 447 N.W. 2d 422 (Minn. 1989)
(recognizing the TWGDAM Guidelines as standards for the
reliability of the RFLP DNA testing).
Federal
legislation authorizing the Federal Bureau of Investigation
(FBI) to establish a National DNA Index System also authorized
the creation of the Federal DNA Advisory Board. This same
legislation recognized the TWGDAM Guidelines and required that
they be followed as the national standards until the FBI
Director approved quality assurance standards for forensic DNA
analysis. See 42 U.S.C.
'
14131. The Federal DNA Advisory Board was responsible for
recommending quality assurance standards, and revisions as
necessary, to the FBI Director and when their statutory time
period expired, they charged SWGDAM with this responsibility.
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SWGDAM is governed by formal
bylaws that describe our responsibilities, membership, Executive
Board, Committees, Meetings, and Conduct of Business. The
Chairman of SWGDAM is selected and serves at the pleasure of the
Director of the FBI’s Laboratory Division. SWGDAM members are
appointed by the Chairman based upon recommendations from a
Nominating Committee and representation is sought from Federal,
State and Local forensic DNA laboratories and the various
geographic regions within the country. Executive Board members
are elected by the SWGDAM membership. The Vice Chairman of
SWGDAM is appointed by the Chair. Invited Guests, representing
international organizations or laboratories, academia, and
accrediting agencies, attend meetings and participate in
Committee meetings as well.
The group
meets each January and July to address issues of importance to
the DNA community (ranging from familial searches, partial
matches, recent court cases, audit issues, kits and reagents,
etc.). When possible, SWGDAM also holds a public meeting for
the DNA community each year to provide updates on the work of
the Committees, quality assurance standards, audit documents,
etc. For many years, these public meetings were held prior to
the International Symposia on Human Identification sponsored by
the Promega Corporation. Beginning in 2006, the SWGDAM public
meetings have been held in conjunction with the FBI sponsored
Annual CODIS Conferences.
SWGDAM has
had several standing Committees in the past for the subject
areas of CODIS, Missing Persons, MtDNA and Quality Assurance. As
issues arise within the DNA community, Committees are formed and
assigned specific objectives. Their final work products are
shared with the public and DNA community at
the public meetings and
through published articles.
SWGDAM
and the FBI’s Quality Assurance Standards
One of
SWGDAM’s most important responsibilities is the recommendation
of revisions to the FBI’s Quality Assurance Standards (QAS) for
DNA Analysis. Adherence to these QAS is required by Federal law
as a condition of a laboratory’s participation in the National
DNA Index System.
The
Federal DNA Identification Act provides, in pertinent part, “the
index described in subsection (a) shall include only information
on DNA identification records and DNA analyses that are-- (1)
based on analyses performed by or on behalf of a criminal
justice agency in accordance with publicly available standards
that satisfy or exceed the guidelines for a quality assurance
program for DNA analysis, issued by the Director of the Federal
Bureau of Investigation under section 210303;” see 42
U.S.C.
'
14132(b)(1).
The SWGDAM
Quality Assurance Committee is the principle group tasked with
drafting revisions to the original QAS. Since issuance of the
original QAS, advancements in science and the introduction of
additional technologies (such as mtDNA and Y-STRs) necessitated
changes in the original standards. Many of these past revisions
have clarified or strengthened existing Standards in the area of
education, training and continuing education of the DNA
personnel. As new revisions are proposed by SWGDAM they are
discussed at SWGDAM public meetings and laboratories performing
forensic DNA analysis are given the opportunity to comment.
Accrediting agencies and their constituencies are also provided
the opportunity to comment on any proposed revisions. Proposed
revisions for the QAS have been approved by SWGDAM
in 2007, 2008, and 2011 and forwarded to the FBI Director for his
consideration. The FBI Director approved the current Forensic
and DNA Databasing QAS and issued them with an
effective date of September 1, 2011 and they are available at
the FBI’s web site at
http://www.fbi.gov/hq/lab/html/codis1.htm.
To ensure the consistency of application of the QAS, the
Committee also revised the FBI QAS Audit Document for use in
conducting audits for compliance with these Standards. The
Forensic and Databasing QAS Audit Documents approved by SWGDAM
and issued by the FBI are also available at the FBI’s web site
at
http://www.fbi.gov/hq/lab/html/codis1.htm.
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