Mich. Comp. Laws § 380.1305: Bomb threat; search by school employee.

Sec. 1305.

If a public or nonpublic school is closed or vacated due to a bomb threat, a school official shall not require a school employee to remain in or to search the school unless the governing body that operates the school has ensured that employee has received appropriate training approved by the appropriate law enforcement agency dealing with bomb threats.