Field Sobriety Tests: Standardized FST

…can be traced to physical problems unrelated to alcohol use. Alcohol causes both mental and physical impairment, but mental impairment always takes place before physical impairment occurs. Physical impairment can…

Field Sobriety Tests: Non-Standardized FST

…it comes to alcohol intoxication, mental impairment always occurs before physical impairment. Some individuals have a high tolerance for alcohol and can mask signs of physical impairment, but mental impairment

One-leg Stand Test

…When an individual drinks alcohol, mental impairment always occurs before physical impairment. Individuals with a high tolerance for alcohol can mask physical impairment, but mental impairment cannot be disguised. If…

Walk-and-Turn Test

…both mental and physical impairment, but mental impairment always occurs first. Physical impairment can be disguised by those with a high tolerance for alcohol, but mental impairment cannot be hidden….

DUI Investigation

…vehicle. The officer may look for signs of impairment when first approaching the driver. The police usually asks for a driver’s license, insurance or registration. Even if he/she appears to…

Physical signs and symptoms of marijuana use

…enough to cause impairment, produces obvious physical signs and symptoms in an individual, whereas marijuana use isn’t quite as recognizable. There are, however, certain physical characteristics that are associated with…

Field Sobriety Tests

…determine both the motorist’s physical and mental impairment, it should be remembered that experts on both sides of the law agree that mental impairment will always precede physical impairment. Physical…