In the last 10 years there has been an increase in impaired driving due to drugs. Most frequently used drugs in blood samples are BZD, THC and amphetamines. Simultaneous use of different BZD and BZD in combination with other drugs and/or alcohol is common. Most drunken and drugged drivers are men. Data from 1992 show that prevalence of drugged drivers per 1 million inhabitants is highest in Norway. A survey was made of 8429 blood samples. 47% of suspected drink drivers had BAC above 0.15%, three times legal limit; of suspected drugged drivers, 25% had BAC above 0.15%. 2529 cases were analysed for drug/alcohol combination. Drugs were found in 59% and alcohol only in 30%. Suspected drugged driving now represents over 30% of total cases where drunken or drugged driving has been suspected. Diazepam and tetrahydrocannabinol are most frequently detected.
Samenvatting