Sobriety tests are used to establish proof that an individual was driving under the influence. While these tests have proven effective,they cannot be trusted to provide 100% results. Here are the main problems with sobriety tests,according to reputable -.

1. Horizontal Gaze Test

This test tries to detect the inability of the eye to follow a predetermined movement. It is believed that the eye suffers what is called a ‘horizontal gaze’ when under the influence. An officer would shine a light or move an object in a particular direction and request the individual being tested to follow the light. If the eye is unable to follow the object smoothly or shows some shakiness,it is an indication of impairment. This test may be ineffective if the individual already suffers an eye defect like the ‘lazy eye’ or crossed eyes.

2. Walk and Turn Test

Here the individual being tested is asked to walk in a straight line then turn. The test is designed to determine the person’s ability to walk in a straight line and also respond to instructions. If a person is unable to do either,he is considered to be under the influence.

This test may be ineffective where a person has a disorder that affects their mobility. People with vestibular disorders have a problem with their inner ear which controls motion and balance of the whole body. People with vision problems or deteriorated physical fitness may also have problems walking straight.

3. One Leg Stand

This test is designed to purely gauge a person’s body balance. One is requested to balance their body on one leg for 30 seconds. People under the influence may struggle to hold still. However,people with disorders affecting the inner ear or their vision and those who have poor physical strength may also fail this test. Nevertheless,this does not mean they are under the influence.

While sobriety tests have some level of success in convicting people of DUI offenses,they are not entirely accurate. Accordingly,there is a need to include tests that evaluate a person’s physiological wellness in order to come to a more accurate conclusion.