Establishes "Purple Alert System" to assist in finding missing persons.

S 2831 establishes New Jersey's "Purple Alert System" to rapidly notify the public about missing persons in urgent situations. The bill requires the Attorney General to create a voluntary system where law enforcement, media, and highway message signs coordinate to share details about missing people who may be in danger of death or serious injury. Alerts can only be issued when specific criteria are met (e.g., sufficient identifying information, danger to the person), and include descriptions and contact instructions for the public. The system is modeled after existing Amber Alerts, with provisions for updating media and using highway signs to aid in locating missing individuals.