Utah R. Evid. 707 (2026)

(a) Definitions. As used in this rule:

(1) “Machine-generated evidence” means information or material produced by a machine-based system that autonomously processes data to generate an inference, prediction, classification, or conclusion.

(2) “Simple scientific instrument” means a device that directly measures and reports information or material without generating an inference, prediction, classification, or conclusion.

(b) Admissibility.

(1) When machine-generated evidence is offered without an expert witness and provides an inference, prediction, classification, or conclusion that would be subject to Rule 702(b) if testified to by an expert, the court may admit the evidence only if the machine-generated evidence:

(A) will help the trier of fact to understand the evidence or to determine a fact in issue;

(B) is based on sufficient facts or data;

(C) is the product of reliable principles and methods; and

(D) reflects a reliable application of the principles and methods to the facts of the case.

(2) This rule does not apply to the output of a simple scientific instrument.

(3) This rule applies when machine-generated evidence is:

(A) entered directly; or

(B) accompanied by lay testimony.

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