ILAC G19
Definition
A guidance document from the International Laboratory Accreditation Cooperation on the use of uncertainty of measurement in forensic science reporting. It requires laboratories to estimate and report measurement uncertainty alongside evaluative opinions, linking this to ISO 17025 accreditation.
Related terms
- Accreditation body
- A national or regional organisation that assesses laboratories against ISO/IEC 17025 and grants accreditation. Examples include UKAS (United Kingdom Accreditation Service), NIST-associated...
- ENFSI Guideline for Evaluative Reporting
- A consensus guidance document from the European Network of Forensic Science Institutes that defines how member laboratories should express evaluative opinions. It...
- ISO 17025
- International standard for the general requirements for the competence of testing and calibration laboratories. Covers management system requirements (document control, internal audits,...
- Proposition pair
- The two competing hypotheses that frame an evaluative opinion: typically a prosecution proposition (Hp) and a defence proposition (Hd). A compliant report...
- Verbal scale
- The ENFSI translation of numerical likelihood ratios into courtroom language: very strong support (LR over 10,000), strong support (LR 1,000-10,000), moderate support...
Explained in
- Evaluative Opinion Standards and FrameworksA guidance document from the International Laboratory Accreditation Cooperation on the use of uncertainty of measurement in forensic science reporting. It requ...