Related Experiment Video
Updated: May 25, 2026

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
Published on: October 2, 2016
The association between pharmacologic drug intoxication and forensic-specific intent
Keith I Yoshizuka1, Paul J Perry
1Behavioral and Administrative Sciences Department, Touro University-California, College of Pharmacy, Vallejo (Mare Island), CA 94592, USA.
Voluntary intoxication can be a defense in specific intent crimes, potentially leading to acquittal if the prosecution cannot prove the defendant
Area of Science:
- Forensic Psychology
- Criminal Law
Background:
- Legal definitions of "intent" are often misunderstood by expert witnesses.
- The intoxication defense varies based on the nature of the crime charged.
Observation:
- Two criminal cases involved defendants charged with felonies while intoxicated.
- Defense counsel sought expert opinions on defendants' capacity to form specific intent.
Findings:
- Voluntary intoxication is not a defense for general intent crimes.
- Intoxication can be used to negate specific intent in certain felonies.
- Proving specific intent is crucial for the prosecution's case.
Implications:
- Expert witnesses must understand the nuances of "specific intent" in intoxication defense cases.
- Proper application of the intoxication defense can lead to acquittals.
- This highlights the importance of mens rea in criminal liability.
Related Concept Videos
Pharmaceutical Poisoning: Potential Scenarios
Drug Toxicity: Dose-Dependent Reactions
Drug toxicity: Idiosyncratic Reactions
Drug Toxicity: Overview
Drug toxicity: Drug–Drug Interaction
Drug Toxicity: Risk factors

