No person shall be appointed a commissioner, secretary, Executive Director, or inspector for the commission who is not a citizen of the United States. No commissioner, secretary, Executive Director, inspector, or other employee shall be appointed who has been convicted of any violation of any Federal or State law concerning the manufacture or sale of alcoholic liquor prior or subsequent to the passage of this Act or who has paid a fine or penalty in settlement of any prosecution against him or her for any violation of such laws or shall have forfeited his or her bond to appear in court to answer charges for any such violation, nor shall any person be appointed who has been convicted of a felony. No commissioner, Executive Director, inspector, or other employee, may, directly or indirectly, individually or as a member of a partnership, or as a shareholder of a corporation, have any interest whatsoever in the manufacture, sale or distribution of alcoholic liquor, nor receive any compensation or profit therefrom, nor have any interest whatsoever in the purchases or sales made by the persons authorized by this Act, or to purchase or to sell alcoholic liquor. No provision of this section shall prevent any such commissioner, secretary, Executive Director, inspector, or other employee from purchasing and keeping in his or her possession for the use of himself or herself or members of his or her family or guests any alcoholic liquor which may be purchased or kept by any person by virtue of this Act.