The statement provided for in §4-6-125 shall be made according to forms provided by the commissioner of correction; provided, that payrolls for temporary employees in cases of emergency may be made at any time after the services are performed, but all such payrolls shall be certified by the managing officer in the same manner as other vouchers, who shall also certify that each person named in the payroll actually rendered the services for the time and at the rate charged therein.