Cannabis testing challenges persist as Virginia retail market nears

By: Capital News Service

Outlets: Virginia Mercury

Published: April 13, 2026

Words: 869

Last Updated: 3 months, 2 weeks ago

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By Stef Anderson/VCU Capital News Service

RICHMOND, Va. –THC breathalyzers are often discussed as a way to detect drivers under the influence, especially as Virginia closes in on a retail cannabis market, but questions remain about their effectiveness.

There is no standardized, widely-approved THC breathalyzer test on the market. Researchers have been trying to develop an effective THC breathalyzer, including former Virginia Commonwealth University professor Emanuele Alves who received a grant from the National Institute …

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