EVIDENCE LIBRARY
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
A primary 49-person study found higher plasma THC and CBD exposure in stage 4–5 CKD after the same Sativex dose; adjusted THC–eGFR association was nonsignificant.
Read guideOct 20, 2026
A 2025 primary study found THC-related gene changes in cultured liver cells. Learn why predicted targets and qPCR do not prove a patient’s hepatitis.
Read guideOct 20, 2026
Original 32-adult four-period trial shows high-fat meals substantially raise plasma CBD exposure, while 7-COOH-CBD changes differ by formulation. Forensic limits explained.
Read guideOct 20, 2026
Original mouse study: early brain mTOR increases, later adipose mTOR decreases and age-specific plasma metabolomics. No measured blood THC or human impairment.
Read guideOct 20, 2026
Two controlled EEG crossover studies distinguish significant MDMA–THC theta/alpha interactions from nonsignificant MDMA–ethanol interactions—and driving limits.
Read guideOct 20, 2026
A 46-person placebo trial found no significant primary sensory or pain benefit from oral CBD/THC; adjusted sensory analyses were exploratory. Learn the forensic limits.
Read guideOct 20, 2026
A 2019 primary study showed why urine urea masked THC-associated Raman signals and how TLC separation helped. It did not validate impairment or forensic accuracy.
Read guideOct 20, 2026
A 2025 study found 100/100 agreement for a four-minute urine THC-COOH screen. Examine the cutoff, LC-MS/MS correlation, and forensic limits.
Read guideOct 20, 2026
A 2017 FPW urine sensor showed THC responses at six spiked levels. See its actual frequency shifts, PSA controls, and why it cannot prove cannabis use or DUI.
Read guideOct 20, 2026
A 116-person primary study links THC-dominant cannabis to more false word recognition, with important CBD-strain, blood-testing and eyewitness limits.
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