A separate sala, for the trial of criminal cases was created in the audiencias of Lima and Mexico. The magistrates serving in these salas were designated as alcaldes del crimen. They had jurisdiction in first instance over the criminal cases arising within five leagues of the capital, as referred to above, and in second instance over those appealed from the provincial judges. [123] The oidores in these audiencias confined themselves to civil suits, but in audiencias where there were no alcaldes del crimen, the oidores were authorized to try both civil and criminal cases. [124] The magistrates of the Audiencia of Manila had both criminal and civil jurisdiction, as that tribunal belonged to the latter class. When the number of oidores present was insufficient to do the work of the audiencia, alcaldes ordinarios or alcaldes mayores who had the necessary qualifications might be transferred temporarily to the tribunal. When acting as oidores they could not try cases over which they had formerly exercised original jurisdiction. [125] A system of procedure was prescribed for the trial of cases before the audiencia and the order fixed in which these should come up for consideration. It was ordered that two slates should be kept, one for cases classified according to their importance and another for those to be tried by rotation. Cases of the first category and those which were especially urgent might supersede the latter, but when there were none of the former the second slate was to be adhered to.