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Analysis of drug-impregnated paper samples seized in English prisons between 2018 and 2020.
Forensic Science International 2024 March 20
Novel psychoactive substances (NPS) in the form of impregnated papers delivered to prisoners are of particular concern in prison settings, where they are commonly used by vaping. The purpose of this study was to create a qualitative method for identifying the various emerging NPS impregnated onto paper samples sent to prisoners. It helps to demonstrate that these findings can be used to predict drug prevalence and trends in prisons. Between 2018 and 2020, 1250 non-judicial paper samples seized from 12 English prisons were analysed to determine the NPSs being circulated. Approximately 1 cm2 paper were cut and added to 50 % (v/v) methanol in LCMS-grade water. Vortex-mixing was used to prepare extracts (30 min). Q-TOF LC/MS was used to screen the extracts. This study showed that synthetic cannabinoid receptor agonist (SCRA) was the most common drug group detected in impregnated paper seizures in English prisons between 2018 and 2020, followed by cocaine, heroin type drugs (A) and amphetamine, ketamine type drugs (B). Male prisons had a higher prevalence of SCRAs, whereas female prisons had a higher prevalence of A drugs. Furthermore, lower security prisons were found to have a higher prevalence of B drugs, pregabalin, gabapentin type drugs (C), and abused and prescription drugs than higher security prisons which unveiled a higher prevalence of nicotine. The findings of this study have revealed new information about drug use in prisons. This study will also aid in the identification of drug smuggling routes into jails, keeping prison staff up to date with the trends.
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