Upon the willful neglect of any public officer to make any report required by law, the officer or board to whom such report should be made promptly shall notify the attorney general or the state‘s attorney of such failure to report. The attorney general or state’s attorney shall investigate the neglect of duty complained of, and, if in the opinion of the attorney general or state’s attorney, the officer has not a sufficient excuse for such failure, the attorney general or state’s attorney shall prosecute such officer.