Responsibilities of Forensic Toxicologist

This chapter provides an in‐depth overview of a forensic toxicologist's role and responsibilities, with an emphasis on three fundamental tasks: analysis, interpretation, and reporting. Their primary duty is to collect and analyze biological samples from both living and deceased individuals in order to detect toxic substances. These samples, which include blood, urine, hair, and gastric contents, require specific collection procedures depending upon whether they are obtained before (antemortem) or after (postmortem) death. Proper sample preservation is essential to ensure sample integrity for analysis. Analytical strategies are outlined, with a two-step approach: presumptive (screening) and confirmatory tests. Presumptive tests indicate the possible presence of the substance of interest but do not confirm its presence, whereas confirmatory tests provide definite identification and quantification of toxic substances. Forensic toxicologists must interpret results clearly, report them concisely, and maintain the chain of custody to ensure the analysis's validity in legal proceedings.