Qualified-Opinion Framework
Definition
The four-tier opinion scale used by forensic anthropologists for identification opinions: identification confirmed / consistent with / cannot exclude / excludes. Formalised in SWGANTH guidance and mirrored in INTERPOL DVI and UK Forensic Science Regulator requirements.
- Tiers
- Confirmed / consistent with / cannot exclude / excludes
- Formalised in
- SWGANTH guidance
- Mirrored by
- INTERPOL DVI and UK Forensic Science Regulator
- Field
- Forensic anthropology identification opinions
Common questions
Why does forensic anthropology use a four-tier opinion scale instead of a binary match or no-match conclusion?+
Skeletal identification often rests on probabilistic features like bone morphology or estimated age range rather than a unique identifier, so the graded scale lets an anthropologist express the actual strength of the evidence rather than overstating certainty a binary conclusion would imply.
What distinguishes 'cannot exclude' from 'consistent with' in this framework?+
'Consistent with' indicates the antemortem and postmortem data align on the features examined without contradiction, while 'cannot exclude' is a weaker statement used when data is limited or inconclusive, meaning the evidence does not rule out the individual but also does not positively support the match.
Related terms
- ABFA Diplomate
- The American Board of Forensic Anthropology's practitioner certification, requiring a doctoral degree, three or more years of forensic casework, a reviewed case...
- BSA 2023 Section 79
- The Bharatiya Sakshya Adhiniyam 2023, which replaced the Indian Evidence Act 1872, governing expert testimony admissibility in India. Section 79 (formerly §...
- Daubert Standard
- The US federal evidentiary standard (Daubert v. Merrell Dow Pharmaceuticals, 1993) requiring that expert testimony be based on scientifically valid methods with...
- ENFSI FAWG
- The ENFSI Forensic Anthropology Working Group, which produces the ENFSI Best Practice Manual for Forensic Anthropology and operates an annual External Quality...
- ISO 17020:2012
- The international standard for inspection bodies. Applies to forensic anthropology teams conducting scene recovery and exhumation, requiring documented procedures, personnel qualification evidence,...
- 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...
- OSAC Anthropology Subcommittee
- The Organisation of Scientific Area Committees' Anthropology Subcommittee, operating under NIST since 2014. Develops and publishes formal standards for forensic anthropology methods...
- Peer Review of Casework
- The ABFA 2017 position: every forensic anthropology report submitted to a court should be independently reviewed by a second qualified analyst before...
- SWGANTH
- Scientific Working Group for Forensic Anthropology. A US expert panel that produced guidance documents (2008-2013) on standards for forensic anthropological practice, now...