Section 306 - Conflict of interest(a) The Commissioner, Appeals Commission, and any hearing officer(s) or such person's spouse, or such person's son or daughter residing at such person's residence, shall not have a financial interest in any entity that sells, manufactures, or uses alcohol; provided, however, such persons may invest in mutual funds or similar financial instruments that hold no more than a 10% interest in any such entity.(b) Neither the Commissioner nor any person employed in the office of the Commissioner shall receive any commission or profit whatsoever from, or have any interest whatsoever in a business licensed under this chapter to purchase or sell alcoholic liquors; provided, however, that nothing in this section shall prevent the Commissioner, Appeals Commission, hearing officer(s) or employee from purchasing and keeping alcoholic liquors in his or her possession for the personal use of him or herself, members of his or her family or his or her guests if such purchase is otherwise permitted by this title. (c) The Commissioner and the Appeals Commission shall annually file with the Public Integrity Commission the Financial Report pursuant to § 5813 of Title 29.38 Del. Laws, c. 18, § 7; Code 1935, §§ 6136(1), (3); 4 Del. C. 1953, § 307; 57 Del. Laws, c. 740, §§ 5E, F; 59 Del. Laws, c. 107, §8; 72 Del. Laws, c. 486, § 7.;