A 15-6 investigation can be initiated by the COC to get more information or evidence for a SIR?

A 15-6 investigation, which refers to an investigation conducted under Army Regulation 15-6, can indeed be initiated by the Chain of Command (COC) to gather more information or evidence concerning a situation reported in a Serious Incident Report (SIR). This type of investigation is utilized to address various issues, including misconduct, breaches of policy, or other significant matters that require further inquiry to ensure proper oversight and accountability.

The process allows leaders to assess the facts of a situation, and it is at their discretion to choose when to initiate such an investigation based on the needs of the command. This flexibility ensures that leadership can respond appropriately to incidents that may require clarification or further investigation to maintain good order and discipline within their ranks.

In contrast, the other choices do not accurately reflect the circumstances under which a 15-6 investigation can be initiated; they introduce restrictions or conditions that are not stipulated in the guidance governing these investigations.