What is the four corners rule?

What is the four corners rule?

• A. a rule about the four corners on a warrant
• B. if details of a case aren't in the four corners of your report's page, it "didn't happen"
• C. a rule about building layout
• D. a rule about page margins

Answer: (B)

The four corners rule is about making the written report complete and self-contained. In law enforcement writing, all essential facts of a case should be captured within the pages of the report itself. If a detail isn’t documented on those pages, it isn’t considered part of what happened for the purposes of the investigation or casework. This keeps the report trustworthy on its own and prevents someone from arguing a detail occurred based on memory or conversations outside the document. If something important is missing, you add it as part of the report or as a supplemental entry so the record remains complete. This rule isn’t about the physical margins of the page, building layouts, or warrant language. Those other options don’t reflect the idea that the written record must include all relevant facts within its pages.

The four corners rule is about making the written report complete and self-contained. In law enforcement writing, all essential facts of a case should be captured within the pages of the report itself. If a detail isn’t documented on those pages, it isn’t considered part of what happened for the purposes of the investigation or casework. This keeps the report trustworthy on its own and prevents someone from arguing a detail occurred based on memory or conversations outside the document. If something important is missing, you add it as part of the report or as a supplemental entry so the record remains complete.

This rule isn’t about the physical margins of the page, building layouts, or warrant language. Those other options don’t reflect the idea that the written record must include all relevant facts within its pages.