Final answer:
The Director in charge of policies and oversight for Military Criminal Investigative Organizations' adult sexual assault investigations would be affiliated with the Department of Defense or a military branch's investigative service, not a civilian agency like OCI or ORA.
Step-by-step explanation:
The Director responsible for developing policy and procedures and overseeing implementation for Military Criminal Investigative Organizations (MCIO) adult sexual assault investigations and special victim investigation and prosecution capability is not explicitly mentioned in the information provided. However, within the Department of Defense (DoD), such responsibilities would typically fall under an agency that deals with criminal investigations and military affairs. As the Office of Criminal Investigations (OCI) and the Office of Regulatory Affairs (ORA) pertain to civilian criminal investigations and regulatory affairs, they would not be directly responsible for military investigations. Military justice systems, including adult sexual assault investigations, are likely to be overseen by the individual military branches' criminal investigative services, such as the Army Criminal Investigation Division (CID), the Naval Criminal Investigative Service (NCIS), or the Air Force Office of Special Investigations (AFOSI), and managed ultimately by the DoD or a high-ranking official within the designated military branch.