Title 9, Chapter 10, Section 51
In all actions brought by one county against another county in the
defending county, the judge shall change the venue to a county
adjoining the one in which the action is brought, on the motion of
the plaintiff, supported by the oath of the chairman or presiding
official of the county governing authority of the county bringing
the action, that in his opinion a fair and impartial trial cannot be
had in the county in which the action is brought.