in which the employee participated personally and substantially through decision, approval, disapproval, recommendation, rendering of advice, investigation, or otherwise while an employee, where the State is a party or has a direct and substantial interest.
in matters which were within the former employee's official responsibility, where the State is a party or has a direct or substantial interest. Additionally, Mississippi Code Annotated § 25-4-105(3)(e)(1972, as amended) states that "no public servant shall perform any service for any compensation for any person or business after termination of his office or employment in relation to any case, decision, proceeding or application with respect to which he was directly concerned or in which he personally participated during the period of his service or employment."
27 Miss. Code. R. 1-6-207