Any practice which might result in unlawful activity, including, but not limited to, rebates, kickbacks, or other unlawful consideration, is strictly prohibited, and each Commission employee is specifically prohibited from participating in the negotiation or selection process when that employee has an interest in, or has a personal or business relationship with a person affiliated with, any person or business entity seeking a contract with the Commission or solicited by the Commission for such a contract which would subject that employee to the prohibition of Section 87100 of the Government Code.