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Usefulness of hair analysis and psychological tests for identification of alcohol and drugs of abuse consumption in driving license regranting.

Lendoiro, Elena; Castro, Ana de; Jiménez-Morigosa, Cristian; Gomez-Fraguela, Xosé A.; López-Rivadulla, Manuel; Cruz, Angelines

Authors

Elena Lendoiro

Ana de Castro

Cristian Jiménez-Morigosa

Xosé A. Gomez-Fraguela

Manuel López-Rivadulla

Angelines Cruz

Abstract

The implementation of the points-based driving license helps to change the drivers' behavior and is related to a reduction of traffic accidents and fatalities. In Spain, when a driver loses all points, the driving license is revoked, so the driver must enroll on a Driver Awareness and Re-education (DARE) course. However, at the moment offenders are not submitted to any test to confirm absence of alcohol or drugs of abuse consumption, even when 9% of Spanish drivers lose their driving license for driving under the influence (DUI). The objective of this pilot study was the comparison of the usefulness of psychological tests and hair analysis to identify those individuals with a chronic consumption of alcohol and drugs of abuse among drivers performing DARE courses. Volunteers were submitted to the AUDIT and DAST-10 tests. Also a hair sample was collected and analyzed for ethylglucuronide (EtG) (LOQ 5 pg/mg) and 35 licit and illicit drugs (LOQ 5-50 pg/mg) by LC-MS/MS. Sixty-one participants with a mean age of 37.2 {plusmn} 11.6 years, and mainly men (90.2%), were recruited and performed AUDIT and DAST-10 tests. All hair samples were analyzed for EtG and 17 samples for licit and illicit drugs. Mean AUDIT score was 9.6 (SD = 7.5), showing a value 30 pg/mg) in 21 cases. All positive cases for methadone and cannabis, and half of positive cases for opioids and cocaine presented higher concentrations than SoHT cut-offs for chronic consumption. Higher AUDIT score and higher EtG concentration in hair were statistically associated with declaration of alcohol consumption >4 times/month and with previous fine for DUI of alcohol. In addition, AUDIT scores and EtG concentration in hair had a moderate but significant Spearman correlation (r = 0.331, p < 0.05). The combination of psychological tests and hair analysis seems to be a promising tool to identify individuals with chronic and problematic consumption of alcohol and drugs of abuse. Moreover, their application during driving license regranting procedures could increase the effectiveness of DARE courses, reduce recidivism and improve road safety.

Journal Article Type Article
Publication Date May 31, 2018
Journal Forensic science international
Print ISSN 0379-0738
Electronic ISSN 1872-6283
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 286
Pages 239-244
Institution Citation LENDOIRO, E., DE CASTRO, A., JIMENEZ-MORIGOSA, C., GOMEZ-FRAGUELA, X.A., LOPEZ-RIVADULLA, M. and CRUZ, A. 2018. Usefulness of hair analysis and psychological tests for identification of alcohol and drugs of abuse consumption in driving license regranting. Forensic science international [online], 286, pages 239-244. Available from: https://doi.org/10.1016/j.forsciint.2018.03.023
DOI https://doi.org/10.1016/j.forsciint.2018.03.023
Keywords EtG; Drugs of abuse; Hair; AUDIT test; DAST10 test; Driving license regranting

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