Yes. A breath test can be challenged in Southaven courts when there are questions about device accuracy, calibration, operator procedures, or proper pre-test observation. Challenges rely on reviewing machine maintenance logs, calibration certificates, operator training records, and the circumstances of test administration to determine whether the result is reliable enough for admission. When significant documentation problems exist, defense counsel can file motions seeking to exclude or limit the breath test evidence at an evidentiary hearing. Challenging a breath test typically begins with obtaining discovery and analyzing the specific records related to the device used. If deficiencies are found, attorneys present legal arguments and supporting documentation to a judge, aiming to prevent unreliable results from being used at trial. The outcome depends on the strength of the record and applicable Mississippi rules, but challenges are a common and important part of DUI defense in DeSoto County.