The breath testing machine uses infrared light and a complicated computer program to determine what your breath alcohol level is. Then the breath alcohol level is converted to a blood alcohol level.

There are a number of issues with the …

Breath Testing


The observation period is critical to getting a valid blow on the breath test. It is also frequently overlooked by police officers. Prior to the breath test, an officer is required to conduct a 15-min observation/deprivation period.

This time is …

Observation Period


The Preliminary Breath Test is the portable, handheld breath tester police officers use after the field sobriety tests to add a little more weight to their probable cause for arresting you.

The PBT gives a breath alcohol score. The score …

Preliminary Breath Test



Missouri police officers are trained to the National Highway Transportation Safety Administration standards. The NHTSA standardized field sobriety tests are a battery of three tests.

The first test in the battery is the Horizontal Gaze Nystagmus. Nystagmus is an involuntary …

Field Sobriety Tests


headscratchChoosing your criminal defense attorney is one of the most important choices you will make in your life. Your life and your name are on the line. You are not clipping coupons now – you want the best you can …

3 tips for picking a criminal defense attorney


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