When a parish or city court judge is unable to preside due to temporary absence, incapacity, or inability, he may appoint a judge ad hoc, who may be another judge or who may be a lawyer domiciled in the parish who possesses the qualifications of the judge he replaces. Appointment shall be by order, which shall reflect the term of and reasons for the appointment, and which shall be entered into the minutes of the court.
La. C.P. § 4865