What is the set delay time after consuming alcohol before testing with the Intoxilyzer 9000?

The correct answer is based on standard operating procedures for the Intoxilyzer 9000, which require a minimum waiting period of at least 15 minutes after a subject has consumed alcohol before conducting a breath test. This delay time is critical to ensure that any residual mouth alcohol does not interfere with the accuracy of the test results. If a breath test is administered too soon after drinking, the presence of mouth alcohol can lead to falsely elevated results, thus compromising the integrity of the test.

This 15-minute observation period allows time for the subject to not only eliminate the immediate effects of drinking from their mouth but also ensures that they do not regurgitate or burp, which could also introduce inaccuracies. This practice aligns with standardized testing protocols used across various jurisdictions to uphold the reliability of breath alcohol testing methodologies. Proper adherence to this requirement is essential for achieving valid and legally defensible results in DUI enforcement.