Can I Challenge the Results of a Field Sobriety Test?

Yes. You can challenge field sobriety test results by questioning how the officer conducted the tests, interpreted your movements, or recorded what happened. Standardized field sobriety tests include the One-Leg Stand, Walk-and-Turn, and Horizontal Gaze Nystagmus (HGN). These roadside exercises help officers assess possible impairment, but they don’t automatically prove that a driver was intoxicated.

If you were stopped in Columbia, our DWI defense lawyer at Landon Miller Law can review the officer’s report and available video to assess whether the evidence supports the officer’s conclusions.

What Can Make Field Sobriety Test Results Unreliable?

Field sobriety tests may be affected by physical conditions, the testing environment, or the officer’s instructions. Potential issues include:

• Physical limitations: A knee injury, balance problem, or other condition may affect your ability to walk or stand steadily
• Road and weather conditions: Uneven pavement, poor lighting, rain, or slippery surfaces may impact your performance
• Unclear instructions: Confusing directions or an officer’s failure to follow testing procedures may affect the results
• Footwear and anxiety: Uncomfortable shoes or nervousness may make certain movements more difficult to perform

For example, if you were stopped on an uneven roadside near U.S. 63, you might struggle with a balance test because of the road surface rather than intoxication. That fact alone would not invalidate the test, but it could support a closer review of the officer’s conclusions.

Can Police Video Help Challenge the Officer’s Findings?

Yes. Dashcam or body camera footage may show how the officer explained the tests, where they took place, and how you performed. Our defense attorney can compare the recording with the officer’s written report to look for inconsistencies or signs that the testing conditions affected your performance.

Missouri law addresses this evidence directly. Under RSMo § 577.020(7), video recordings of field sobriety tests may be admissible in court and in administrative license proceedings. The footage may support the prosecution’s account as well, so it should be reviewed carefully.

Can You Challenge a DWI Charge Even if You Failed the Tests?

Yes. An officer’s conclusion that you performed poorly doesn’t automatically prove you’re guilty. The prosecution must prove the elements of the DWI charge, including that you operated a vehicle while in an intoxicated condition under RSMo § 577.010. The state may also rely on your driving, the officer’s observations, statements you made, and chemical test results. We can examine how those pieces of evidence fit together and whether the field sobriety test results deserve less weight.

What Should You Do After a DWI Stop in Columbia?

Keep any citations, arrest paperwork, and notices concerning your driving privileges. As soon as you can, write down what you remember about the stop, including the location, weather, road surface, instructions, and any physical limitations you had at the time. Avoid deleting relevant recordings or messages and speak with our defense lawyer promptly. Court dates and administrative deadlines may apply, and challenging the test evidence doesn’t pause them.

Could Issues With Your Field Sobriety Test Help Your Case? Consult Our DWI Defense Firm Now

Our DWI lawyer can review available footage, compare it with the officer’s report, and assess whether the testing procedure or conditions provide grounds to challenge the evidence. If you were arrested in Columbia or elsewhere in Boone County, getting that review early can explain which challenges the evidence may support and what to address next. Message us or call Landon Miller Law at 573-658-1919 to arrange your free case assessment.