OSAC
Definition
Organization of Scientific Area Committees for Forensic Science: established by NIST and DOJ in 2014, it develops consensus forensic standards through structured technical committees and submits them for formal publication via ASTM, ANSI, and other SDOs.
- Full name
- Organization of Scientific Area Committees for Forensic Science
- Established
- 2014
- Administered by
- NIST (National Institute of Standards and Technology), US
- Co-founded with
- US Department of Justice
- Publishes through
- ASTM, ANSI, and other standards-development organizations
Common questions
What is OSAC?+
OSAC stands for the Organization of Scientific Area Committees for Forensic Science. It was established in 2014 by NIST and the US Department of Justice to develop consensus-based standards for forensic science disciplines. These standards are developed through structured technical committees and then published through formal standards organizations like ASTM and ANSI.
Why do OSAC standards matter in court?+
When a method or practice appears on the OSAC Registry, it becomes a recognized reference point for laboratory accreditation. OSAC-recognized standards are also increasingly cited during Daubert reliability assessments, which is the process US courts use to evaluate whether scientific evidence is admissible.
How is OSAC different from the older SWG bodies?+
The Scientific Working Groups (SWGs) were discipline-specific committees that produced informal guidance documents. OSAC replaced many of them with a more structured process that routes finished standards through official standards-development organizations for formal publication. For example, OSAC's Documents Subcommittee took over the role previously held by SWGDOC in questioned document examination.
Related terms
- ISO/IEC 17025
- The international standard for testing and calibration laboratories, published jointly by the International Organization for Standardization and the International Electrotechnical Commission. It...
- Proficiency Test
- A blind or semi-blind comparison exercise in which an examiner or laboratory analyses a set of test prints of known ground truth;...
- A2LA / UKAS / ANAB
- National accreditation bodies: A2LA (American Association for Laboratory Accreditation) and ANAB in the US; UKAS (United Kingdom Accreditation Service) in the UK....
- ABFDE
- American Board of Forensic Document Examiners: the US professional certification body whose diplomate examination is the recognised US standard for examiner competence...
- Accreditation
- Formal recognition by a standards body (such as UKAS in the UK, A2LA in the US, or NABL in India) that a...
- ACE-V
- Analysis, Comparison, Evaluation, Verification: the four-stage method for latent print examination used by accredited forensic fingerprint laboratories. Analysis examines the latent in...
- ACE-V Validation
- The documented process of demonstrating that a laboratory's local implementation of the Analysis, Comparison, Evaluation, Verification methodology produces reliable results across the...
- ACS (Algorithmic Comparison Score)
- Extension of CMC that converts the raw cell-count score into a likelihood ratio using calibrated probability distributions from known match and non-match...
- ANAB
- The American National Standards Institute National Accreditation Board, formed after the merger of ASCLD-LAB with ANSI-ASQ National Accreditation Board in 2016. Now...
- ASTM E1618
- Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry. The active analytical standard defining...
- ASTM E2154
- Standard Practice for Passive Headspace Concentration with Activated Charcoal. The most widely used extraction method for volatile ILR components from sealed fire...
- Blind Verification
- The procedure in which a second fingerprint examiner independently performs the Analysis and Comparison stages without knowledge of the first examiner's conclusion....
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