What is the significance of calibration checks for breath testing instruments?

Calibration checks for breath testing instruments like the Intoxilyzer 9000 are crucial because they help ensure accurate test results. Calibration involves comparing the instrument's measurements to a known standard, allowing for the identification and correction of any deviation from the true measurement. This process helps maintain the integrity and reliability of the data collected during breath alcohol testing.

Accurate test results are essential for legal and safety purposes, particularly in DUI (driving under the influence) enforcement. If the instrument is not properly calibrated, it could provide false readings, which can lead to wrongful accusations or inadequate enforcement actions. Thus, the significance of calibration checks lies in their role in upholding the accuracy and credibility of breath test results, which ultimately affects the outcome of legal proceedings and public safety initiatives.