What type of notification involves alerting about missing persons or children?

The term "missing information notification" is appropriate in this context as it directly pertains to the procedure of alerting relevant authorities and the public regarding missing persons, including children. This type of notification is crucial for mobilizing resources and efforts to locate individuals who are unaccounted for and may be in danger.

This notification is often disseminated through various channels, including law enforcement agencies, social media, and community outreach. It can involve the issuance of alerts that provide details such as physical descriptions, last known locations, and circumstances surrounding the disappearance, which can facilitate quicker responses from both the public and law enforcement agencies.

In contrast, the other options involve different contexts. Emancipation notification relates to legal processes concerning minors gaining independence from parental control, while unidentified person notification pertains to cases where individuals are found but cannot be identified, such as deceased individuals. Sex offender notification deals specifically with informing the public about registered sex offenders living in a certain area, which is a different issue altogether from missing persons. Therefore, "missing information notification" is the best choice for this scenario.