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Diaz v. United States

United States Supreme Court
144 S. Ct. 1727 (2024)

Written by Nathan Benedict, JD

Facts

Delilah Diaz (defendant) was charged with importation of methamphetamine after a border search of her vehicle discovered 56 packages of methamphetamine hidden in the door panel, floorboards, and trunk. At trial, Diaz presented a “blind mule” defense, contending that she had no knowledge of the drugs in her vehicle. The government called Homeland Security Investigations Special Agent Andrew Flood as an expert witness. Flood testified that Mexican drug cartels rarely entrusted large quantities of drugs to unknowing couriers. Flood acknowledged that some organizations did use unknowing couriers. Diaz was convicted and appealed. She argued that Flood’s testimony was improper opinion testimony concerning her state of mind.

Rule of Law

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Issue

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Holding and Reasoning (Thomas, J.)

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A "yes" or "no" answer to the question framed in the issue section;
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The procedural disposition (e.g., reversed and remanded, affirmed, etc.).

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Concurrence (Jackson, J.)

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