What are 'locus actus' and 'locus delicti' and why are they relevant in canon law?

• A. Locus actus is the place where the act occurred; locus delicti is the place where the delict occurred; They determine which tribunal has competence and the applicable law.
• B. Locus actus means the ritual location
• C. They refer to liturgical calendars
• D. They are matters of administrative procedure for parishes

Answer: (A)

In canon law, where something happens matters for who handles the case and which rules apply. Locus actus is the place where the act itself took place. Locus delicti is the place where the delict or offense occurred, which can be the same as the act’s location or different if the harm or consequences happen in another place. These locational concepts help determine two essentials: which ecclesiastical court has competence to judge the matter, and which law or penalties should govern the case.

If the offense was committed in a specific diocese, the diocesan tribunal there typically has jurisdiction, and the local canons and procedures apply. When the act spans multiple places, identifying the proper locus can avoid confusion about venue and applicable law, and may even indicate if a higher authority (like a supra-diocesan tribunal) is appropriate. The distinction also matters for deciding which norms govern procedural questions, such as how acts are prosecuted, what evidence is admissible, and what penalties may be imposed.

For clarity, the other options don’t fit because they refer to unrelated concepts: a ritual location, liturgical calendars, or administrative procedures for parishes, none of which address jurisdiction or the governing law in canonical proceedings.