MS Code § 99-3-7 (2019)
(3) (a) Any law enforcement officer shall arrest a person with or without a warrant when he has probable cause to believe that the person has, within twenty-four (24) hours of such arrest, knowingly committed a misdemeanor which is an act of domestic violence or knowingly violated provisions of an ex parte protective order, protective order after hearing or court-approved consent agreement entered by a chancery, circuit, county, justice or municipal court pursuant to the Protection from Domestic Abuse Law, Sections 93-21-1 through 93-21-29, Mississippi Code of 1972, or a restraining order entered by a foreign court of competent jurisdiction to protect an applicant from domestic violence.