Miss. Code § 45-5-9
The sheriff of each county, and the mayor of each municipality, is hereby authorized and empowered to appoint as many extra deputy sheriffs and as many extra deputy police officers, as the case may be, as he deems necessary for the purposes herein. Each applicant to the academy herein created shall be subject to approval by the Commissioner of Public Safety who shall be the sole judge of the qualifications of such applicant, and when deemed necessary for the purposes herein, the sheriff and mayor, as the case may be, shall have the power and authority to order said deputies to perform any of the duties required under this chapter, and all such deputies ordered to do so shall have the full power and authority so to do as is vested in other police or peace officers of this state. Such deputies shall be paid for services rendered such compensation and may be furnished such uniforms and equipment as may be agreed upon by the sheriff with approval of the board of supervisors, and by the mayor, with the approval of the governing authorities of such municipality, same to be paid from any available county funds, and/or any available municipal funds, as the case may be. Each such deputy shall give bond, with sufficient surety, to be payable, conditioned and approved as provided by law, in a penalty not less than Fifty Thousand Dollars ($50,000.00). The premiums for such bonds shall be paid from any available county funds or any available municipal funds, as the case may be.
Miss. Code § 45-5-9