§ 410. Officials not to be interested in sales, leases or contracts. A public officer or school officer, who is authorized to sell or lease any property, or to make any contract in his official capacity, or to take part in making any such sale, lease or contract, who voluntarily becomes interested individually in such sale, lease or contract, directly or indirectly, except in cases where such sale, lease or contract, or payment under the same, is subject to audit or approval by the commissioner of education, is guilty of a misdemeanor. The provisions of this § of the general municipal law.