Any officer or employee of the Municipality who has a financial interest, direct or indirect, in any contract with the Municipality or in the sale of any land, material or services to the Municipality or to a contractor supplying the Municipality shall make known that interest and shall refrain from voting upon or otherwise participating in that capacity as an officer or employee of the Municipality in making of such sale or in the making or performance of such contract. Any officer or employee of the Municipality who conceals such financial interest or violates the requirements of this section shall: if after a hearing before the head of the department, the Manager and one representative selected by the accused, be found responsible and/or guilty of the accusation; forfeit the office or position. Violation of this section with the knowledge, express or implied, of the person or corporation contracting with or making sale to the Municipality shall render the contract or sale voidable by the Manager or the Council. (Amended November 2, 1976)