Miss. Code Ann. § 41-20-11

The State Department of Mental Health, the regional commissions, the Division of Medicaid, the State Department of Rehabilitation Services, the State Department of Health, the PEER Committee, and the Legislative Budget Office shall cooperate with the coordinator under sections 41-20-1 through 41-20-11 and shall allow the coordinator or his or her staff to, as it relates to the performing of his or her duties:

(a) Enter any part of the mental health system, including any facility or building used to provide mental health services;

(b) Interview any person employed by or receiving services from the respective entity; and

(c) Access services, documents, records, programs and materials as necessary to assess the status of the mental health system.