What must happen after 30 days regarding missing person records that are incomplete?

The correct action required after 30 days regarding missing person records that are incomplete is to reverify them. This process ensures that the information associated with a missing person is accurate and up to date. By reverifying, agencies can confirm whether the missing person's status has changed or if additional details have come to light that could aid in their recovery.

It is essential to keep missing person records as current as possible to ensure effective search efforts can be carried out, and to avoid confusion or misinformation in the database. Failure to reverify incomplete records may lead to outdated or incorrect information being disseminated, which could hinder investigations and search efforts.

The other options suggest actions that do not align with the procedures established for handling missing person records. For instance, automatically deleting records would prevent updates that could lead to the recovery of a missing person. Similarly, marking them as closed would imply that the case has been resolved, which contradicts the requirement for further investigation and verification of incomplete records. Automatically updating incomplete records also does not reflect the necessity for active engagement with the information to ensure its accuracy.