EVIDENCE LIBRARY
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
Eight-ewe original THC toxicology study: ataxia, weeklong feed refusal and three elevated troponin I tests. What it does—and cannot—prove about hemp feed.
Read guideOct 20, 2026
A Tourette and ADHD case report found serum THC up to 364 ng/mL alongside passing Vienna test scores. Why this cannot establish actual driving safety or a cutoff.
Read guideOct 20, 2026
In six Beagles, THC oils cooled the dogs and changed selected ECG measures. Learn what plasma cannabinoid testing can—and cannot—prove.
Read guideOct 20, 2026
A 20-patient original THC/CBD spray study found large variation in circulating THC and modeled absorption; why it cannot reconstruct a person’s impairment.
Read guideOct 20, 2026
A 130-driver primary study found no significant corrected simulator lane differences or THC-driving correlations 12–15 hours after smoking. See the limits.
Read guideOct 20, 2026
A seven-rat ex vivo experiment found a stronger THC-plus-ethanol oxygen-consumption decrease in young gastrocnemius, but not consistently across muscle or age. No human BAC or impairment was tested.
Read guideOct 20, 2026
A 23-person smoking study found CB2 lymphocyte mRNA group differences but no validated gene-expression test for THC timing or individual driving impairment.
Read guideOct 20, 2026
A 2026 primary study found surfactant-related false-negative urine THC-COOH screens. See the 15/15/15 blinded evidence, control limits, and forensic implications.
Read guideOct 20, 2026
A six-condition human trial found no significant memory protection from alpha-pinene added to THC. Examine the 19-person data and forensic limits.
Read guideOct 20, 2026
A 13-woman postpartum study found urine THC-COOH quantifiable in 7/8 at one week while breast milk THC was below quantification in 8/8. Forensic limits explained.
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