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Criminal Defense Lawyer

September 2013

Designed to Fail: The Truth About Field Sobriety Tests

I recently received a lot of questions on this topic, so I thought it would be an interesting article idea for my blog and this newsletter.

Many of you may have seen a field sobriety test (FST), which takes place when a police officer pulls over a suspected drunk driver and asks him or her to perform a series of roadside tests to determine sobriety. With the advent of the breathalyzer test, FSTs have fallen to the wayside in many states. However, police officers may still use FSTs in deciding whether to make an arrest and may submit testimony at trial based on actions observed during the tests.

The most commonly used FSTs include the horizontal gaze nystagmus test, the walk-and-turn, and the one-leg stand. For the horizontal gaze test, an officer asks a driver to follow an object back and forth with his or her eyes. The walk-and-turn requires a driver to walk in a straight line toe to heel, and the one-leg stand, as the name suggests, requires the driver to hold one leg in the air while balancing on one foot.

Although these tests seem simple, they have faced sharp criticism from researchers and attorneys who question the tests’ ability to accurately determine intoxication. Criticisms are based mainly on a series of studies conducted by the National Highway Traffic Safety Administration (NHTSA). In one study, police officers incorrectly identified 47% of drivers as being drunk when they were in fact completely sober.

In a later study, a professor at Clemson University, Dr. Spurgeon Cole, asked police officers to identify drunk drivers based on video footage of drivers performing field tests. The officers watching the videos incorrectly identified an individual as drunk nearly half the time. As a result, Dr. Cole concluded that the tests are highly subjective and unreliable. In an interview, Dr. Cole stated that the tests are “designed to fail. There are no norms, there is no average score. We have no idea what the average person could do on the one leg with the heel to toe.” According to Cole, even if officers perform all three tests together and do so correctly, “you are only 26 percent better than chance, 74 percent as much error as you would if you just randomly guessed.”

Moreover, others argue that a driver’s performance on the tests can be negatively impacted by many factors, including age, weight, shoe wear, and weather conditions. Some people who have underlying medical conditions, such as a condition impairing balance, may not be able to pass the tests even when sober.

If you have any further thoughts, comments or questions, please feel free to e-mail or call me.

Motivation and Inspiration

I am really enjoying using Pinterest lately for following social trends, and it is a great source for inspirational quotes.  As a small business owner, motivating myself and staying positive day in, day out, is critical! Here are a few of my favorites this month.

"People will forget what you said, people will forget what you did, but people will never forget how you made them feel."
------Maya Angelou

"People with goals succeed because they know where they're going."
-----Earl Nightingale

"Man is most uniquely human when he turns obstacles into opportunities."
-----Eric Hoffer

"I have chosen to be happy because it is good for my health."
----Voltaire