Which of the following is NOT a function of the NCIC system?

The function of the NCIC system is primarily focused on law enforcement purposes, including providing critical information that assists agencies in various aspects of criminal justice. The system is designed to store and share data related to criminal activity, such as alerts for missing persons, criminal history information, and facilitating vehicle theft recoveries.

Facilitating civil case documentation is not a primary function of the NCIC. Civil matters, including disputes that do not involve criminal activity, typically fall outside the scope of what the NCIC addresses. The focus on criminal justice and public safety means that the NCIC is used as a tool to assist law enforcement in dealing with issues related to crime, rather than providing support for civil legal issues.

Therefore, while options like providing alerts for missing persons, storing criminal history information, and assisting in vehicle theft recoveries align with the purpose of the NCIC, the facilitation of civil case documentation does not fit within its established functions.