RÉSUMÉ
En mars 1999 une nouvelle loi réprimant la conduite sous influence de drogues illicites a été introduite en Belgique. La procédure légale consiste en a) un test de comportement, b) un dépistage immunochimique pour 4 groupes de drogues dans les urines c) une confirmation par une analyse du plasma (GC-MS avec des seuils fixes
SUMMARY
In March 1999 a new law prohibiting driving while impaired by illegal drugs was introduced in Belgium. The legal procedure consists of a) a field impairment test, b) a urine immunoassay for 4 drug groups and c) ultimate proof by plasma analysis (GC-MS with fixed cut-offs). Over about two years the analysis of 896 blood samples revealed the presence of illicit drug(s) above cut-off in
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