WASHINGTON (AP) -- For nearly two months, D.C. police have been working with only one of eight breath-test machines used to measure the blood-alcohol content of suspected drunken drivers.

An alcohol urine test involves a lab testing a person’s urine sample for the presence of alcohol. Three types of this test exist. One measures unmetabolized alcohol, while the others measure two of ...

Several tests measure the level of alcohol in your blood. These procedures are typically simple but may take several weeks to get results. A blood alcohol test measures the percentage of alcohol in a ...