1. No officer or employee of police departments of such cities shall, during any fiscal year, spend any money, incur any liability, or enter into any contract which by its terms incurs the expenditure of money for any purpose for which no appropriation is provided in the board budget or in excess of the amount appropriated by the board for any such purpose.
2. Any officer or employee violating the provisions hereof shall immediately be removed from office, and liable for the amount of such claim.