What should be done if an officer suspects a faulty reading from the Intoxilyzer 9000?

When an officer suspects a faulty reading from the Intoxilyzer 9000, consulting a supervisor regarding the reading is the appropriate action. This step is crucial because a supervisor can provide additional guidance, support, and set in motion the proper protocol for handling suspected inaccuracies. Additionally, discussing the situation with a supervisor can help ensure that any necessary procedures are followed, such as conducting further evaluations or performing a calibration check on the device.

Engaging a supervisor also emphasizes the need for transparency and adherence to standards in the handling of breath test equipment, which is essential in legal contexts. This ensures that all protocols are rigorously adhered to, potentially leading to a re-testing process that safeguards the integrity of the results obtained from the Intoxilyzer 9000.

The other choices, such as conducting a second test with the same device or recalibrating it, do not first validate the initial reading or the circumstances around it. Immediately ruling a test as inaccurate without further investigation can also undermine the due process required in these situations. Thus, consulting with a supervisor is a critical first step in addressing the concerns over the device's accuracy.