Taís Regina Fiorentin1 | Barry K. Logan1,2


1. The Center for Forensic Science Research and Education, Willow Grove, PA, USA
2. NMS Labs, Willow Grove, PA, USA


The purpose of this study was to identify the extent and types of drugs found in alleged drug facilitated sexual assaults (DFSA) in 37 states and 1 territory of the United States. In total, 1000 cases were reviewed. Between the cases that gender was provided (613), most of the victims (91.68%) were woman, mean age of 26.8 years old. Blood and/or urine samples were tested. Twenty-one point six percent of the cases were negative for intoxicating substances. A hundred and one different substances were detected. Overall, ethanol was the most prevalent substance, detected in 30.9% of the cases (309 cases), followed by cannabinoids (THC/THCCOOH/11-OH-THC) (28.8% of cases), amphetamine/methamphetamine (16.5% of cases), cocaine/metabolites (10.4% of cases), and clonazepam/metabolite (7.6% of cases). The mean, median and range concentrations of ethanol in blood (n = 309) were 98.6 mg/dL, 82.0 mg/dL and 9.2-366 mg/dL, respectively. Ethanol and cannabinoids were the most frequent combination found. The absence of alcohol and drugs in some cases may represent delay in collecting samples.

Keywords: Alcohol; Date rape; Drug-facilitated sexual assault; Drugs of abuse; Toxicology.


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