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Activity-level proposition

Definition

A proposition addressing how biological material came to be at a location, such as whether the suspect physically handled an object, as opposed to a source-level proposition about who the donor is.

Related terms

Daubert standard
The US federal evidentiary standard (Daubert v. Merrell Dow Pharmaceuticals, 1993) requiring that expert testimony be based on scientifically valid methods with...
Defender's fallacy
Dismissing match evidence by citing the large absolute number of people who share the characteristic, ignoring all other evidence that narrows the...
Frye standard
The US legal test for admissibility of scientific evidence, originating from Frye v. United States (1923), which required that a technique be...
Prosecutor's fallacy
The error of transposing the random-match probability (the probability that a random person has the profile, given they are innocent) to state...
Source attribution
The inferential step of linking a trace to its donor. Serology identifies blood as human and potentially as a specific genetic type;...

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