Miss. Code Ann. § 29-5-3: Miss. Code Ann. § 29-5-3

The several rooms and apartments of the New Capitol shall not be occupied by any other persons nor for any other purpose than as expressly authorized by the legislature; provided, however, that it shall be the duty of the legislature to provide office space in the New Capitol for any state department, officer or employee where it is provided by law that such department, officer or employee shall have an office in the state capitol.