HANNIBAL â Revisions to a number of Hannibal animal control ordinances, at least one of which dates back to the 1800s, will be up for consideration when the Hannibal City Council next meets in regular session on Tuesday, April 20, at city hall. Attempts to revise the cityâs animal control ordinances have failed previously. âI lost track, but this is either the third or the fourth time we have taken a stab at this,â said City Attorney James Lemon in a memo to the council. In drafting the latest revisions Lemon included input from the Hannibal Police Department, HPDâs Community Service Officers, who frequently are called upon to enforce animal ordinances, and the general public.