In order to perform this DWI test it is required that it be performed on a hard, dry, level, non-slippery surface with sufficient room for the suspect to complete nine heel-to-toe steps. This test loses validity when conducted in certain wind/weather conditions that counters this criteria […]
Tag Archives: field sobriety testing
Field Sobriety Testing: One Leg Stand
In order to perform this test, it must be performed on a hard, dry, level, non-slippery surface. Conditions must be such that the suspect would be in no danger if he or she were to fall. Certain wind/weather conditions obviously may interfere with and affect the validity of this test. This test should not be given to persons who are more than sixty-five years of age, more than […]
Standards For The Standardized Field Sobriety Testing (SFST) Program
Psychophysical tests should require evaluation of the subject’s appearance and condition, ability to follow instructions, as well as balance and coordination. These types of tests are called Divided Attention Tests. They require the subject to concentrate on more than one thing at a time. They divide the subject’s attention between mental and physical tasks […]