A judge who is a cleric must preside over the college, but the other judges may be laypersons. В§ 3.В Cases of nullity of marriage are reserved to a college of three judges. В§ 2.В The bishop is to establish a diocesan tribunal for his diocese to handle cases of nullity of marriage without prejudice to the faculty of the same bishop to approach another nearby diocesan or interdiocesan tribunal. 1673 В§ 1.В In each diocese, the judge in first instance for cases of nullity or marriage for which the law does not expressly make an exception is the diocesan bishop, who can exercise judicial power personally or through others, according to the norm of law.

1672.В In cases regarding the nullity of marriage not reserved to the Apostolic See, the competencies are: 1В° the tribunal of the place in which the marriage was celebrated 2В° the tribunal of the place in which either or both parties have a domicile or a quasi-domicile 3В° the tribunal of the place in which in fact most of the proofs must be collected.Д¬an. В§ 2.В Cases regarding merely the civil effects of marriage belong to a civil magistrate, unless the particular law establishes that such cases, if carried out in an incidental or accessory manner, can be recognized by and determined by an ecclesiastical judge.Д¬an.

1671 В§ 1.В Marriage cases of the baptized belong to the ecclesiastical judge by proper right. CASES FOR DECLARING THE NULLITY OF SACRED ORDINATION (Cann. PROCESS IN THE PRESUMED DEATH OF A SPOUSE PROCESS FOR THE DISPENSATION OF A MARRIAGE RATUM ET NON CONSUMMATUM THE BRIEFER MATRIMONIAL PROCESS BEFORE THE BISHOP THE JUDGMENT, ITS APPEALS AND ITS EFFECTS THE INTRODUCTION AND INSTRUCTION OF THE CASE CASES TO DECLARE THE NULLITY OF MARRIAGE n

Canon 1670