Alcohol testing is a routine procedure and is essential in the case of alcohol related crimes such as DUI and DWI’s. Over the years, alcohol-testing methods had improved to become more accurate and less invasive. Here are four of the most common forms of alcohol tests that are normally associated with DUI’s:
Field Sobriety Test
This is the most basic form of alcohol testing, and is considered to be the most inaccurate compared to other tests. This test is purely physical with no chemical or medical tests being performed. The field sobriety tests require individuals to complete basic tasks that measure balance, coordination and response time. Intoxication can often be identified when conducting tests such as the one-legged stand, having the person walk in a straight line and turn around, and the horizontal gaze nystagmus test, when the person is asked to focus on an object that it 12-15 inches away from their horizontal view.
This is the most popular form of testing because they are portable and offer instant results for police officers and emergency workers. Breathalyzer tests detect the current presence of alcohol in the body, measuring the alcohol passed through blood vessels in the lungs. The suspected person blows into the Breathalyzer, which provides a very accurate estimation of blood alcohol level.
This is an inexpensive method of alcohol testing that is common among businesses that want to test their employees, but is also used to identify a DUI. However, a urine test will only detect recent alcohol use in the past 12 hours. The suspected substituting someone else’s clean urine for their own can compromise these tests, but monitored urine testing has made this more difficult.
A blood alcohol test involves taking blood from the person accused of a DUI and tests the blood alcohol level directly. This test will usually take place once a person has been arrested and taken in for processing, after they have failed a field sobriety and Breathalyzer test. This test is much more accurate than field sobriety and Breathalyzer tests, but because it is more expensive, other methods are more frequently used.
If you are suspected of a DUI, contact a Tucson DUI attorney at Thrush Law Group immediately. Our attorneys will concentrate their efforts on defending you with a diligent approach that offers the best chance of dismissal or acquittal.