In Guatemala each municipality has its own criminal court whose judge is appointed by the Country's Supreme Court. The judges or magistrates of these courts are call judge of peace or juez de paz. In very small municipalities the juez de paz is oftem the mayor but in large cities there are several distinguised by their appointment number. Your reference is to that municipality's second magistrate of the criminal court.
Here is a link to a good basic discription of the government of Guatemala.
http://www.nyulawglobal.org/globalex...udicial_Branch
Joel, El Detective