Forensic Toxicology Course

Lesson 1 • Classification of Toxic Substances

Categorises poisons by chemical class, mechanism, and source. Enables rapid identification of substance type during casework.

Lesson 2 • Ethical and Professional Standards

Covers impartiality, confidentiality, and professional codes governing forensic toxicologists. Establishes the ethical baseline for all subsequent practice.

Lesson 3 • Core Toxicological Concepts

Introduces dose-response relationships, toxicity thresholds, and lethal concentrations. Provides the conceptual vocabulary used throughout the course.

Lesson 4 • Medicolegal Framework and Roles

Defines the forensic toxicologist's duties in criminal, civil, and workplace contexts. Links professional roles to case outcomes.

Lesson 1 • Metabolism and Biotransformation

Details Phase I and Phase II metabolic reactions and key enzyme systems. Explains how metabolites inform analytical target selection.

Lesson 2 • Elimination and Half-Life

Analyses renal, hepatic, and pulmonary elimination pathways and half-life calculations. Supports back-calculation of ingestion time.

Lesson 3 • Postmortem Redistribution

Explains concentration changes after death due to diffusion and decomposition. Critical for accurate interpretation of postmortem drug levels.

Lesson 4 • Absorption Routes and Rates

Examines oral, inhalation, dermal, and parenteral absorption pathways. Explains how route affects onset and peak concentration.

Lesson 1 • Preservation and Storage Conditions

Defines temperature, light, and container requirements to prevent degradation. Ensures specimen integrity from collection through analysis.

Lesson 2 • Chain of Custody Documentation

Establishes documentation steps that track specimen possession continuously. Protects evidentiary value and supports courtroom admissibility.

Lesson 3 • Scene Investigation and Evidence Recovery

Guides toxicologists in recovering drug containers, syringes, and environmental samples at scenes. Integrates scene findings with laboratory analysis.

Lesson 4 • Types of Biological Specimens

Surveys blood, urine, hair, vitreous humour, and alternative matrices. Matches specimen type to analytical goal and case context.

Lesson 1 • High-Performance Liquid Chromatography

Covers HPLC and UHPLC principles for thermolabile and polar compounds. Connects method choice to analyte physicochemical properties.

Lesson 2 • Gas Chromatography Fundamentals

Explains GC instrumentation, column selection, and detector types for volatile and derivatised analytes. Builds the foundation for GC-MS confirmation.

Lesson 3 • Method Validation and Quality Control

Defines accuracy, precision, linearity, and matrix effects for forensic method validation. Ensures results meet regulatory and courtroom standards.

Lesson 4 • Immunoassay Screening Techniques

Covers enzyme, fluorescence, and lateral-flow immunoassays used for initial drug screening. Explains cross-reactivity and cutoff thresholds.

Lesson 1 • Opioids and Opioid Analogs

Covers natural, semisynthetic, and synthetic opioids, including fentanyl analogs. Links receptor pharmacology to overdose presentation and detection.

Lesson 2 • Stimulants and Sympathomimetics

Analyses cocaine, amphetamines, and cathinones regarding mechanism and cardiac toxicity. Covers metabolite markers used for detection.

Lesson 3 • Central Nervous System Depressants

Examines benzodiazepines, barbiturates, and sedative-hypnotics. Explains synergistic lethality with alcohol and opioids.

Lesson 4 • Novel Psychoactive Substances

Addresses designer drugs, research chemicals, and emerging NPS classes. Develops strategies for detecting structurally unknown compounds.

Lesson 1 • Postmortem Alcohol Analysis

Addresses endogenous production, putrefaction artifacts, and vitreous humour use. Distinguishes antemortem consumption from postmortem formation.

Lesson 2 • Back-Calculation and Retrograde Extrapolation

Applies Widmark and population-based models to estimate BAC at an earlier time. Covers uncertainty ranges and courtroom presentation.

Lesson 3 • Ethanol Pharmacokinetics

Details absorption, distribution, and elimination of ethanol using the Widmark model. Provides the quantitative basis for back-calculation.

Lesson 4 • Analytical Methods for Ethanol

Covers headspace GC, enzymatic assay, and breath analysis for ethanol quantification. Compares method accuracy and forensic acceptability.

Lesson 1 • Cause and Manner of Death Concepts

Distinguishes cause, mechanism, and manner of death and the toxicologist's role in each. Frames how toxicology findings influence death certification.

Lesson 2 • Interpreting Postmortem Drug Levels

Applies reference ranges, redistribution corrections, and tolerance concepts to postmortem data. Produces defensible concentration interpretations.

Lesson 3 • Toxicological Report Writing

Structures clear, accurate, and legally defensible toxicology reports. Covers terminology, opinion statements, and limitation disclosures.

Lesson 4 • Specimen Selection in Autopsy Cases

Guides selection of blood sites, organ tissues, and alternative matrices at autopsy. Maximises interpretive value of postmortem specimens.

Lesson 1 • Direct Examination Techniques

Structures clear, logical testimony that educates the jury on toxicological findings. Emphasises plain language and visual aid use.

Lesson 2 • Admissibility Standards for Scientific Evidence

Explains general acceptance and reliability-based admissibility frameworks for scientific testimony. Connects validation practices to courtroom acceptance.

Lesson 3 • Ethical Obligations in Testimony

Reinforces impartiality, accuracy, and the duty not to advocate for a party. Addresses conflicts of interest and compensation disclosure.

Lesson 4 • Qualifying as an Expert Witness

Covers education, experience, and publication criteria used by courts to qualify experts. Prepares students for voir dire examination.