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Specimen types , Injection sites

المؤلف:  Sue Jickells , Adam Negrusz (Editors)

المصدر:  Clarkes Analytical Forensic Toxicology

الجزء والصفحة:  197

2026-10-11

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Specimen types , Injection sites

Forensic folklore indicates that injection sites may be valuable for determining whether someone has been injected with a drug or poison. However, proof of intravenous injection through the analysis of excised tissue around the suspected injection site is unlikely to be convincing, because the drugs will probably be swept away rapidly by the blood circulation. Arguably, a botched injection might leave an extravascular residue. Subcutaneous injection sites offer a better chance of detection, since absorption from them is considerably slower. In either case, it is critical that a control site be excised, for example from the opposite side of the body, in order that it can be analysed alongside the suspected injection sample to compare tissue concentrations. It is easily forgotten that most drugs and other toxins are distributed to virtually every tissue and fluid in the body.