Alcohol use among fatally injured drivers in Spain

Blood from 285 fatally injured drivers in Northern Spain was collected and tested for the presence of alcohol and drugs. Alcohol was detected in 50.5% of all fatalities. Alcohol alone was detected in 44.2% of all samples and in the remaining 6.3% another substance was found together with alcohol. Blood alcohol concentration was classified in different levels. It has been observed that in 35.4% of the cases the blood alcohol level was > or = 0.8 g/l, the legal limit in Spain for car drivers. Alcohol together with other substances was encountered in 18 cases, with medication in 22.2% (4 out of 18), alcohol with illegal drugs in 66.6% of the cases (12 out of 18), and alcohol with medicines and illegal drugs in 11.1% (2 out of 18). Cocaine was the most commonly detected drug. The study shows how widespread the incidence of a high level of alcohol concentration among drivers involved in fatal accidents in Spain.     

Drug markets and the selective use of violence

Drug markets and violence are often presented as inextricably linked. Yet, the use of organized violence by trafficking networks against each other and against the state is not uniform. Insights into the selective use of violence lie in disputes between crime groups over control of lucrative distribution networks and market share. Insights into the use of violence against the state lie in the efforts by criminal justice personnel to curtail the drug trade and the political goals pursued by trafficking organizations. This article discusses these arguments in the context of cocaine markets and the Americas before turning more extensively to methamphetamine in the USA and especially Japan. The latter one, understudied by scholars, offers a challenging plausibility probe for arguments addressing the selective nature of organized violence in drug markets.

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Drug use and violence: Rethinking the connections

This paper examines the available empirical and theoretical literature on the connections between drug use and violent crime, using the conceptual framework developed by Goldstein (1985). The authors argue that the available evidence on the drugs/violence nexus does not support moral claims about the ‘harmfulness’ of illegal drugs that underpin the criminalization of certain mind-active drugs. Instead, much of the connection between legal and illegal drug use and violence appears to be an effect of a history of criminalization of certain drugs. Law is therefore implicated in producing the connection between drug use and violence, rather than acting simply as a neutral mechanism for controlling criminal violence.     

Wind-drag estimation in a traffic accident involving a motor scooter and a tractor-trailer

This case report describes a noncontact traffic accident involving a motor scooter and a tractor-trailer with a focus on the wind-drag effect. We used load cells to measure the drag force acting on a substantially similar motor scooter when a substantially similar tractor-trailer passes by it, taking into consideration various speeds of the tractor-trailer and distances between the two vehicles. A three-dimensional steady-state flow analysis was also performed by using the CFX program for computational fluid dynamics to examine the streamlines and the pressure distribution around the tractor-trailer at various speeds. From the experiment, for a separation distance of 1.0 m (3.28 ft) and a speed of 90 km/h (55.9 mph), the maximum resultant drag force is 124.5 N (28 lb); this constitutes a degree of force that could abruptly disrupt the stability in maneuvering by an operator who is unaware of the approaching tractor-trailer. In addition, a single equation that relates the tractor-trailer speed to the drag force that acts on the motor scooter was derived on the basis of the Reynolds number (Re) and the wind-drag coefficient (C(d)): C(d) = 1.298 × 10(-7) Re.     

Changing patterns of drug and alcohol use in fatally injured drivers in Washington State

We have previously reported on patterns of drug and alcohol use in fatally injured drivers in Washington State. Here we revisit that population to examine how drug use patterns have changed in the intervening 9 years. Blood and serum specimens from drivers who died within 4 h of a traffic accident between February 1, 2001, and January 31, 2002, were analyzed for illicit and therapeutic drugs and alcohol. Drugs when present were quantitated. Samples suitable for testing were obtained from 370 fatally injured drivers. Alcohol was detected above 0.01 g/100 mL in 41% of cases. The mean alcohol concentration for those cases was 0.17 g/100 mL (range 0.02-0.39 g/100 mL). Central nervous system (CNS) active drugs were detected in 144 (39%) cases. CNS depressants including carisoprodol, diazepam, hydrocodone, diphenhydramine, amitriptyline, and others were detected in 52 cases (14.1%), cannabinoids were detected in 47 cases (12.7%), CNS stimulants (cocaine and amphetamines) were detected in 36 cases (9.7%), and narcotic analgesics (excluding morphine which is often administered iatrogenically in trauma cases) were detected in 12 cases (3.2%). For those cases which tested positive for alcohol c. 40% had other drugs present which have the potential to cause or contribute to the driver's impairment. Our report also considers the blood drug concentrations in the context of their interpretability with respect to driving impairment. The data reveal that over the past decade, while alcohol use has declined, some drug use, notably methamphetamine, has increased significantly (from 1.89% to 4.86% of fatally injured drivers) between 1992 and 2002. Combined drug and alcohol use is a very significant pattern in this population and is probably overlooked in DUI enforcement programs.     

Drug use and pretrial misconduct in New York city

Is recent drug use significantly associated with pretrial misconduct? Does consideration of recent drug use enhance risk classification among a sample of persons who have time free pending the disposition of their cases? Using data on arrestees in Manhattan, this paper examines these issues and some related questions. To measure recent drug use, urine samples were collected from persons shortly after their arrest and tested for four drugs: heroin, cocaine, PCP, and methadone. Two measures of pretrial misconduct are considered: whether a defendant fails to appear for a scheduled court date (FTA) and whether a defendant is rearrested prior to case disposition. Censored probit models are used to estimate the statistical association between drug test results and pretrial misconduct. Results show that drug test results are significantly associated with pretrial misconduct over and above the information typically available to judges at the time release decisions are made. Some implications of these findings for pretrial decision making are discussed.     

Drug use in India: Historical traditions and current problems

By all accounts, drug abuse in India — as elsewhere around the world — is reaching near epidemic proportions. Although India has been a world producer of legal drugs for pharmaceutical markets, it also has an ancient tradition of using drugs in daily activities and ceremonial rituals. Only in recent years has this historically drug‐rich country developed a drug abuse problem. Because of its history of tolerance of drug use in culturally sanctioned activities, India offers a rich site for investigating the conditions that foster responsible and irresponsible use of drugs. Global efforts at crop reduction, interdiction, and criminal sanctions continue to be disappointing at best. A more realistic approach may be to identify factors that make drugs particularly alluring to some segments of the population and not to others. This approach emphasized responsible conduct in drug‐rich environments rather than depending on the increasingly unlikely eradication of the supply.     

Screening for drug use among Norwegian drivers suspected of driving under influence of alcohol or drugs

Two hundred and seventy blood samples selected at random from Norwegian drivers apprehended on the suspicion of drunken or drugged driving were screened for the presence of amphetamine, benzodiazepines, cannabinoids, tetrahydrocannabinol (THC) and cocaine. Of the samples tested, 223 were from drivers suspected of driving under the influence of alcohol only (A-cases). In the rest (n = 47) of the cases, the police also suspected drugs as a possible reason for driving impairment (D-cases). In the A-cases, benzodiazepines were found in 17%, cannabinoids in 26%, THC in 13% and amphetamine in 2% of the blood samples. One or more drugs besides ethanol were found in 38% of the A-samples. In the D-cases, benzodiazepines were found in 53%, cannabinoids in 43%, THC in 43%, amphetamine in 13% and 77% of these samples contained one or more drugs. Cocaine was not detected in any sample. Blood alcohol concentrations (BAC) above the legal limit of 0.05% were found in 80% of the drug positive A-cases and in 28% of the drug positive D-cases. The frequency of drug detection in A-samples was similar (40%) in samples with BAC above and below 0.05%, while this frequency was much higher (above 90%) in D-samples with BAC below 0.05% than in D-samples with BAC above 0.05% (53%). Benzodiazepines were most frequently found among drivers above 25 years of age, while cannabinoids were most frequently found among drivers below 35 years. For about 15-20% of the A-cases with BAC below 0.05%, other drugs were detected at concentrations which may cause driving impairment. It was concluded that analysis of alcohol only might often be insufficient in A-cases to reveal driving impairment.     

Drug use and criminal activity among rural probationers with DUI histories

The present study examined whether ever being arrested for driving under the influence (DUI) was associated with higher levels of substance use and criminal activity in a sample of 800 probationers. Lifetime and 30-day histories of substance use and criminal activity were compared across three groups of probationers from rural Kentucky: those with a single DUI arrest, those with two or more DUI arrests, and those with no DUI arrests. A larger percentage of probationers with a DUI arrest reported lifetime and 30-day substance use than non-DUI offenders in almost all drug and alcohol categories. Higher prevalence of criminal activity was limited primarily to the multiple DUI arrest group. Findings add to the literature on rural substance abusers and indicate that DUI may be used as a marker to help identify opportunities for targeted substance abuse interventions.     

The use of oral fluid and sweat wipes for the detection of drugs of abuse in drivers

Blood, urine, oral fluid (by spitting or with a Salivette), and sweat samples (by wiping the forehead with a fleece moistened with isopropanol) were obtained from 180 drivers who failed the field sobriety tests at police roadblocks. With quantitative GC-MS, the positive predictive value of oral fluid was 98, 92, and 90% for amphetamines, cocaine, and cannabis respectively. The prevalence of opiate positives was low. The proposed SAMHSA cut-off values for oral fluid testing at the workplace, proved their usefulness in this study. The positive predictive value of sweat wipe analysis with GC-MS was over 90% for cocaine and amphetamines and 80% for cannabis. The accuracy of Drugwipe was assessed by comparing the electronic read-out values obtained on-site after wiping the tongue and the forehead, with the corresponding GC-MS results in plasma, oral fluid, and sweat. The accuracy was always less than 90% except for the amphetamine-group in sweat.     

Concentrations of free-morphine in peripheral blood after recent use of heroin in overdose deaths and in apprehended drivers

The concentration of free-morphine was determined in peripheral (femoral) blood from heroin-related deaths and compared with the concentration in venous blood from impaired drivers. The presence of 6-MAM in blood or urine served as a biomarker for recent use of heroin. Males dominated over females (p<0.001) in both the autopsy cases (88%) and the drivers (91%), although their mean age was about the same 33-35 y (p>0.05). Concentrations of free-morphine in blood were not associated with age of heroin users in Sweden (p>0.05). The median concentration of free-morphine was higher in autopsy cases (0.24 mg/L, N=766) compared with apprehended drivers with 6-MAM in blood (0.15 mg/L, N=124, p<0.05), and appreciably higher than in drivers with 6-MAM in urine but not in blood (0.03 mg/L, N=1823, p<0.001). The free-morphine concentration was above 0.20mg/L in 65% of autopsy cases, 36% of drivers with 6-MAM in blood but only 1.4% of drivers with 6-MAM in urine. Poly-drug deaths had about the same concentrations of free-morphine in blood (0.24 mg/L, N=703) as heroin-only deaths (0.25 mg/L, N=63). The concentration of morphine in drug overdose deaths (median 0.25 mg/L, N=669) was about the same as in traumatic deaths among heroin users (0.23 mg/L, N=97). However, the concentration of morphine was lower when the deceased had consumed alcohol (0.18 mg/L, N=104) compared with taking a benzodiazepine (0.32 mg/L, N=94). The concentration distributions of free-morphine in blood in heroin-related deaths overlapped with the concentrations in impaired drivers, which makes the interpretation of toxicology results difficult without knowledge about tolerance to opiates in any individual case.