https://handbook.la-archdiocese.org/chapter-13/section-13-10/topic-13-10-2
STUDENT THREATS
All threats by students to inflict serious harm to self or others, or to destroy property, will be taken seriously. Whoever hears or becomes aware of any threat made by a student should immediately report it to the pastor, principal, or a teacher. The principal will notify the police and the Department of Catholic School immediately.
The student who has made the threat will be kept in the school office under supervision until the police arrive. The parents/guardians of the student who has made the threat will be notified. Any adult or student who has been identified as the potential victim, or mentioned in writing as a potential victim, will be notified immediately.
The student who has made the threat will be suspended until the investigation by the police and school has been completed.
The decision to re-admit a student who has made a threat will be made by the principal and pastor on a case-by-case basis.
Practical jokes or offhand comments of a threatening nature will be taken seriously and will be investigated. The police may be notified and these actions may result in suspension or removal of a student from school.