Key Factors in DUI Cases
DUI cases in Clay County, MO, often revolve around a few key factors that have a significant impact on the charges and potential outcomes. In this section, we will explore these crucial elements in a concise manner, highlighting blood alcohol concentration (BAC) levels, field sobriety tests, and Breathalyzer and blood test procedures.
It’s important to note that if a driver’s BAC level is between 0.05% and 0.079%, law enforcement may still charge the driver with DUI if they can establish impairment through other means, such as field sobriety tests.
Field Sobriety Tests and Their Reliability
When law enforcement suspects an individual of driving under the influence, they often begin by conducting field sobriety tests. These tests aim to assess a driver’s mental and physical faculties to determine impairment levels. The most common field sobriety tests include:
- Horizontal Gaze Nystagmus (HGN) Test
- Walk-and-Turn Test
- One-Leg Stand Test
Although these tests are widely used, their reliability has been questioned. For example, the National Highway Traffic Safety Administration (NHTSA) acknowledges that the HGN Test is only 77% accurate, while the Walk-and-Turn Test and One-Leg Stand Test have accuracy rates of 68% and 65%, respectively.
Breathalyzer and Blood Test Procedures
Breathalyzers and blood tests are more reliable methods of determining a driver’s BAC level. During a traffic stop, officers often administer a preliminary breath test using a handheld breathalyzer. If the driver fails this test, they will be taken into custody for further testing.
Once in custody, the driver will be given a more accurate blood or breath test to confirm their BAC level. It’s worth mentioning that refusing these tests can result in automatic license suspension in Missouri.
To ensure an accurate result, these tests should be conducted within the proper guidelines and procedures. For example, the officer administering the breathalyzer test must have proper certification, and the device must be calibrated and maintained according to manufacturer guidelines. Similarly, blood tests must be conducted by qualified medical professionals, and samples must be stored and handled properly to avoid contamination.
In conclusion, understanding the key factors in DUI cases can help individuals navigate the complex legal landscape surrounding driving under the influence and ensure that their rights are protected throughout the process.