What is the purpose of a supplemental report, and what information typically triggers it?

• A. To replace the initial report.
• B. To summarize the case after closure.
• C. To punish the officer who filed the report.
• D. To add new information or update an investigation after the initial report; triggered by new statements, new evidence, or ongoing investigation.

Answer: (D)

Supplemental reports are used to add new information or update an ongoing investigation after the initial report has been filed. They keep the case file accurate by recording developments such as new statements from witnesses or victims, newly discovered evidence, or changes in the investigation’s direction. This type of report is not meant to replace the initial report, but to augment it so the original remains intact with the most current information attached. It is also not a tool for punishment or for summarizing a case after it’s closed. The trigger is typically new statements, new evidence, or ongoing investigation activity that affects the facts or status of the case. When writing one, clearly reference the original report, specify what is new or updated, include dates/times and sources, and ensure it aligns with agency procedures and evidentiary requirements.