Abstract

Hair analysis for drugs is now well established in forensic toxicology. Segmental hair analysis permits retrospective information on drug exposure (single or repeated) and should be considered in the investigation of drug-facilitated crimes where there has been any appreciable delay in samples being obtained for analysis. This chapter will provide an overview of hair testing in cases of drug-facilitated crimes, the type of extraction and the analytical techniques employed and recommended, the limits required, and the possibilities that can be expected from recent analytical techniques. It will also provide some data on specific difficulties of hair analysis, segmentation and interpretation of the concentrations.

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