SWGDOC and Other SWGs
Definition
Scientific Working Groups (SWGDOC for questioned documents, SWGDRUG for drugs, SWGSTAIN for bloodstain, SWGFEX for fire and explosion, SWGFAST for fingerprints) that publish consensus best-practice guidelines used as accreditation benchmarks.
- Questioned documents
- SWGDOC
- Drugs
- SWGDRUG
- Bloodstain pattern
- SWGSTAIN
- Fire and explosion
- SWGFEX
- Fingerprints
- SWGFAST
Common questions
How are these discipline-specific SWG guidelines actually used by a forensic laboratory?+
Accrediting bodies and quality managers use the relevant SWG's published guidelines as a benchmark when writing internal standard operating procedures and when assessing a laboratory during accreditation review, so the lab's methods can be shown to align with community-recognised best practice.
Why does each forensic discipline have its own separate SWG instead of one shared set of guidelines?+
Techniques, error sources, and validation needs differ substantially between disciplines, for example ink dating in SWGDOC versus DNA-informed pattern interpretation in SWGSTAIN, so a single generic guideline could not address the specific analytical concerns each field requires.
Related terms
- Accreditation
- Formal recognition by a standards body (such as UKAS in the UK, A2LA in the US, or NABL in India) that a...
- Calibration
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- ISO 9001
- The international standard for quality management systems published by the International Organization for Standardization. Certification means the organisation has documented and implemented...
- 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...
- NABL
- National Accreditation Board for Testing and Calibration Laboratories, a constituent board of the Quality Council of India. It is the sole accrediting...
- 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...
- Quality Assurance (QA)
- The management system that ensures QC actually happens and stays effective over time: written SOPs, training and competence records, internal audits, document...
- Quality Control (QC)
- The day-to-day activities that verify a single batch of results is reliable: method blanks, certified-reference-material runs, duplicate injections, spike recoveries and control-chart...
- Traceability and Uncertainty
- Metrological traceability is an unbroken chain of calibrations linking a result to a stated reference (CRM, NPL India primary standard, NIST). Measurement...
- Validation
- The process of establishing through systematic testing that a method does what it claims to do, within defined conditions and with a...
- Verification
- Confirmation that a method's performance, when implemented locally, meets the validated specifications. Less work than validation; required when a lab adopts a...