The alcohol breath test is reviewed with a focus on gas exchange factors affecting its accuracy. The basis of the alcohol breath test is the assumption that alveolar air reaches the mouth during exhalation with no change in alcohol concentration. Recent investigations have shown that alcohol concentration is altered during its transit to the mouth. The exhaled alcohol concentration is modified ...

This study was conducted to determine whether the lowered BAC limit for drivers in North Carolina resulted in fewer alcohol-related motor vehicle crashes. We used time-series analysis to examine several indicators of alcohol involvement in both injury and fatal crashes between 1991 and 1996. Data from NC crash files as well as the Fatality Analysis Reporting System (FARS) are used. We also exam...

Judgement of driving capability bases on determination of alcohol concentration in blood. This is carried out by two different methods, whereby the mean value is taken out of four test results. The mean value may very slightly taking either two or three decimal places. We suggest not to abandon the third decimal place. Due to German jurisdiction absolute incapability to drive is given when alco...

This article details the history and development of the National Highway and Safety Administration's Standardized Field Sobriety Tests. They are reviewed in terms of relevant scientific, psychometric, and legal issues. It is concluded that the research that supports their use is limited, important confounding variables have not been thoroughly studied, reliability is mediocre, and that their de...

AIM The change of antemortem blood alcohol concentration (BAC) in inadequately processed samples was examined. METHODS The study was performed on nine healthy, sober volunteers after overnight fasting. Blood samples were divided into groups and stored, with or without NaF, for varying time periods (12, 24 and 48 h) and at different temperatures (4 degrees C and 20 degrees C). BAC analysis was...

The intentionality bias is the tendency for people to view the behavior of others as intentional. This study tests the hypothesis that alcohol magnifies the intentionality bias by disrupting effortful cognitive abilities. Using a 2 × 2 balanced placebo design in a natural field experiment disguised as a food-tasting session, participants received either a high dose of alcohol (target BAC = .10%...