Final answer:
According to GO:401.03, the investigating member should report to the commanding official.
Step-by-step explanation:
According to GO:401.03, the investigating member should report to the commanding official. It is the responsibility of the investigating member to provide relevant information and findings to the commanding official for further action or decision-making. Seeking guidance from the commanding official and taking necessary action as per the situation may also be required, but the first step is to report the findings.