SWGDAM
Definition
Scientific Working Group for DNA Analysis Methods; the US body that publishes interpretation guidelines and validation requirements for forensic DNA laboratories operating under FBI Quality Assurance Standards.
- Type
- US inter-agency working group
- Primary publications
- DNA interpretation guidelines, RMP and LR calculation standards, validation requirements
- Connected to
- FBI Quality Assurance Standards, ISO/IEC 17025 accreditation
Common questions
What is SWGDAM and who uses it?+
SWGDAM stands for Scientific Working Group for DNA Analysis Methods. It is a US inter-agency body that publishes interpretation guidelines for forensic DNA laboratories. Labs use SWGDAM standards to ensure their DNA analysis and reports meet national quality assurance requirements.
What kinds of guidelines does SWGDAM publish?+
SWGDAM publishes interpretation guidelines for DNA analysis, including standards for calculating Random Match Probability (RMP) and Likelihood Ratio (LR). These guidelines help forensic labs validate their methods and reach consistent conclusions when comparing DNA profiles.
How does SWGDAM relate to lab accreditation?+
SWGDAM guidelines are part of the FBI Quality Assurance Standards that forensic DNA laboratories must follow to operate under accreditation frameworks like ISO/IEC 17025 and NABL. Following SWGDAM standards helps labs demonstrate they meet validation requirements for their tests.
Related terms
- Defence Attorney's Fallacy
- The incorrect argument that a large global or national population means many unrelated individuals could share the profile, while ignoring the geographic...
- ENFSI DNA WG
- ENFSI DNA Working Group; the European body that publishes the DNA Profiling Best Practice Manual, the Evaluative Reporting Guideline, and coordinates the...
- ENFSI DNA Working Group
- The European Network of Forensic Science Institutes DNA Working Group. Coordinates European forensic DNA standards, including the evaluative reporting guidelines adopted by...
- Hardy-Weinberg Equilibrium (HWE)
- The expected genotype frequency in a large, randomly mating population with no selection, mutation, or migration. Under HWE, the frequency of a...
- ISO 21043
- The ISO standard for the forensic science process (recognition, recording, collection, examination, interpretation, reporting), complementing ISO/IEC 17025 by addressing the forensic-specific workflow...
- ISO/IEC 17025:2017
- The international standard specifying general requirements for the competence of testing and calibration laboratories. Covers management (document control, non-conforming work, audits) and...
- Likelihood Ratio (LR)
- The ratio of two conditional probabilities: the probability of the observed evidence given the prosecution's hypothesis (same source), divided by the probability...
- NABL
- National Accreditation Board for Testing and Calibration Laboratories, a constituent board of the Quality Council of India. It is the sole accrediting...
- Prior Odds
- The ratio of the probability of the prosecution hypothesis to the probability of the defence hypothesis before the forensic evidence in question...
- Product Rule
- The rule that, under independence, the joint probability of a multi-locus genotype equals the product of the individual locus genotype frequencies. Used...
- Proficiency Testing (PT)
- A quality assurance mechanism in which laboratories analyse blind samples distributed by an external scheme coordinator and have their results compared against...
- Prosecutor's Fallacy
- The error of treating the RMP (or its reciprocal) as the probability that the defendant is innocent, or as the probability that...
Explained in these topics
- ISO/IEC 17025, SWGDAM, ENFSI and NABL AccreditationScientific Working Group for DNA Analysis Methods; the US body that publishes interpretation guidelines and validation requirements for forensic DNA laboratori...
- Allele Frequencies, Random Match Probability and the Likelihood RatioScientific Working Group for DNA Analysis Methods. The US inter-agency body that publishes interpretation guidelines for forensic DNA analysis, including RMP a...