All fees, costs and charges in any and all criminal and civil cases allowed constables under public local laws or public general laws of this state and county paid over to any member of the county police shall be paid forthwith by such member to the director of finance of the county, and the members of the county police shall not receive by way of fees, costs or otherwise any sum other than the salaries duly authorized to be paid them. (Mont. Co. Code 1965, § 18-10; 1939, ch. 730, § 10.)