Miss. Code § 7-1-21
Investigators and other personnel, employed by the governor pursuant to Section 7-1-19, shall have full power to investigate, apprehend, or arrest any person, firm, corporation, or any combination or conspiracy thereof committing said acts of violence, or threats of violence, or intimidations, or acts of terror, or damaging, injuring, or destroying property as a result of acts of violence or terror, in any manner whatever, and to help indict or prosecute, or both, in all such cases. Such investigators or other personnel so employed by the governor, in the performance of their duties under Sections 7-1-19 through 7-1-23, are authorized and empowered to carry firearms and to serve warrants and subpoenas issued under the authority of the state of Mississippi; to make arrests without warrant in such cases where the person making the arrest has reasonable grounds to believe that the person so arrested is guilty of any of the offenses herein named and there is a likelihood of the person escaping before a warrant can be obtained for his arrest, but the person arrested shall be immediately taken before a committing officer; to acquire, collect, classify, and preserve records and evidence obtained hereunder; and to make all lawful searches and seizures to obtain evidence of such acts, when based upon reasonable grounds or probable cause that such is necessary in the accomplishment of the purposes of the aforesaid sections.
Miss. Code § 7-1-21