It shall be the duty of the chief of police to keep a record of arrests made by any member of the police department, whether such arrest is made under the provisions of this code or under the laws of the state of Iowa, which record shall show the offense for which the arrest was made, by whom made, and the disposition of the charge. He shall make such periodical reports to the mayor and council as may be required, showing the number of arrests made during such period and the offenses for which each was made. He shall supervise the accounting for all fees collected by the police department and transmit said funds to the clerk for deposit twice each month or more often, as required. (1969 Code; 1991 Code)