Audio interception on a school bus or school vehicle for disciplinary or security purposes is lawful only if the school board has adopted an authorizing policy, includes it each school year in the student handbook and other publications of the school's rules, posts a clearly visible notice on each equipped vehicle that students may be audiotaped, and posts notice of the policy on its public website; it does not apply when the vehicle is used for a purpose that is not school related.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.