No member of the governing board, nor officer, nor employee of any adjustment school shall be interested, personally, directly, or indirectly, in any contract, purchase, or sale made, or in any business carried on in behalf of the school. Any money paid on the contracts or sales may be recovered by a civil suit, and the governing board upon the proof of such interest shall remove from office immediately the member, officer, or employee.
Ca. Welf. and Inst. Code § 969