If a police officer suspects you of driving under the influence of alcohol or drugs they will conduct field sobriety tests. Field sobriety tests are designed to determine whether or not the suspect is impaired cognitively or physically. Examples of the tests include walking a straight line, reciting the alphabet backwards, and the pen light test of the suspect's eyes. Chemical tests are also used and are designed to measure a person's blood alcohol level (BAC) using either a breathalyzer during the traffic stop or by testing urine or blood at a hospital.
Nov 7, 2011 02:31 PM