A more thorough explanation:

REG. JUD.

REG. JUD. is an abbreviation for REGISTRUM JUDICALE, which is a Latin term that means "judicial register" or "court record."

Examples of REG. JUD. include:

• A court's official record of all the cases it has heard and the decisions it has made
• A judge's personal log of the cases he or she has presided over

These examples illustrate how REG. JUD. refers to the documentation and record-keeping that takes place within a court of law. It is important to keep accurate records of court proceedings and decisions in order to ensure fairness and transparency in the legal system.