Probation & Pretrial Facilities in MS Probation & Pretrial Facilities operating within MS. Probation & Pretrial Facilities in MS US Probation & Pretrial Services Office Gulfport, Harrison County US Probation & Pretrial Services Office Tupelo, Itawamba County US Probation & Pretrial Services Office Jackson, Hinds County US Probation & Pretrial Services Office Hattiesburg, Forrest County US Probation & Pretrial Services Office Oxford, Lafayette County US Probation & Pretrial Services Office Greenville, Washington County