Category: Forensic Toxicology

NarcoPouch Test False Positive Dilemma

This article explains NarcoPouch Test False Positive Dilemma and the scientific, legal or practical evidence readers should understand.

Toxicology Lawyer Talks Drug Testing in The Workplace

This article explains Toxicology Lawyer Talks Drug Testing in The Workplace and the scientific, legal or practical evidence readers should understand.

Advances in Tools For the Forensic Toxicologist

This article explains Advances in Tools For the Forensic Toxicologist and the scientific, legal or practical evidence readers should understand.

Drug Testing Myths

This article explains Drug Testing Myths and the scientific, legal or practical evidence readers should understand.

Hair Testing – Hair All About It!

This article explains Hair Testing – Hair All About It! and the scientific, legal or practical evidence readers should understand.

Types of Forensic Testing

This article explains Types of Forensic Testing and the scientific, legal or practical evidence readers should understand.

Dram It Out

This article explains Dram It Out and the scientific, legal or practical evidence readers should understand.

Teasing Out The Details

This article explains Teasing Out The Details and the scientific, legal or practical evidence readers should understand.

Drug Facilitated Crimes Series – Data Collection

This article explains Drug Facilitated Crimes Series – Data Collection and the scientific, legal or practical evidence readers should understand.

How Safe is Your Sample?

This article explains How Safe is Your Sample? and the scientific, legal or practical evidence readers should understand.

Drug Facilitated Crimes Series – Result Interpretation

This article explains Drug Facilitated Crimes Series – Result Interpretation and the scientific, legal or practical evidence readers should understand.

Drug Facilitated Crimes Series – Analytical Considerations Part 3.

This article explains Drug Facilitated Crimes Series – Analytical Considerations Part 3. and the scientific, legal or practical evidence readers should understand.

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Recent Blog Articles

A Cannabis Trial’s Smoking-Procedure Change Was Not a Randomized Safety Comparison

A cannabis driving trial reported fewer adverse events after switching from paced smoking to smoking to a desired effect. That observation does not establish the size of a causal safety benefit. The trial randomized cannabis-potency conditions; the smoking procedure changed during the study because the initial procedure was poorly tolerated….

Read Article: A Cannabis Trial’s Smoking-Procedure Change Was Not a Randomized Safety Comparison

THC Measured Per Forehead Sweat Pad Cannot Be Converted Into a Blood Concentration

A result expressed as nanograms of THC per sweat pad measures the amount recovered from that pad. It does not provide a blood concentration. A study involving drivers investigated in Italy illustrates why collection units, confirmation and participant selection must remain visible when interpreting forehead-sweat evidence. The collection sampled the…

Read Article: THC Measured Per Forehead Sweat Pad Cannot Be Converted Into a Blood Concentration

An Unidentified Serum Compound Does Not Justify Subtracting 14.6% From Every THC-COOH Result

A serum study found a compound that could interfere with THC-COOH measurement, but its reported median relative abundance was not a universal measurement error. The finding supports checking a laboratory’s separation and identification procedures. It does not justify subtracting 14.6% from every reported cannabis-metabolite result. The problem appeared in authentic…

Read Article: An Unidentified Serum Compound Does Not Justify Subtracting 14.6% From Every THC-COOH Result