Miss. Code Ann. § 47-5-415

The sheriff, in the case of county inmates and state inmates incarcerated in county jails, and the Commissioner of Corrections, in the case of state inmates incarcerated in a Mississippi Department of Corrections facility, may institute a procedure for granting passes and leaves to inmates participating under Sections 47-5-401 through 47-5-421 , and may grant such passes or leaves in deserving cases, not to exceed three (3) days or seventy-two (72) hours.