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LIMS Stage Gating

Definition

A laboratory information management system function that prevents an examiner from advancing to the next examination stage until the current stage is documented and locked; the technical implementation mechanism for linear ACE-V and sequential unmasking in operational fingerprint laboratories.

Related terms

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....
Confirmation Bias
The cognitive tendency to search for, interpret, favour, and recall information in a way that confirms or supports one's prior beliefs or...
Contextual Bias
The influence of case-relevant background information (suspect financial difficulties, police intelligence) on the direction of an examiner's technical analysis. Demonstrated experimentally for...
Evaluative Reporting
A framework for expressing forensic conclusions in terms of the probability of the evidence given the prosecution hypothesis versus the defence hypothesis...
Linear ACE-V
An implementation of ACE-V methodology that enforces strict sequential documentation: analysis of the latent mark must be completed and recorded before the...
Mayfield Error
The 2004 FBI misidentification of Brandon Mayfield as a contributor to a latent print from the Madrid train bombing, attributed by the...
Sequential Unmasking
An information-sequencing protocol in which the examiner receives the questioned material first, completes and documents the analysis before receiving the known standards,...
SWGFAST
Scientific Working Group for Friction Ridge Analysis, Study and Technology; the predecessor body to the OSAC Friction Ridge Subcommittee; produced documentation standards...
Within-Expert Contradiction
The finding, documented by Dror and Charlton (2006), that the same examiner can reach contradictory conclusions about the same mark-exemplar pair across...

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