What determines the necessity of a supplementary report?

The necessity of a supplementary report is determined by new information or actions taken after the original report has been filed. Supplementary reports are crucial for documenting updates that emerge after the initial report is created. This could include additional witness statements, findings from forensic analysis, or any developments in the case that require further documentation and clarity. They serve to keep a complete and accurate record of an investigation, ensuring that all relevant details are captured as they evolve. This ongoing documentation helps law enforcement maintain a comprehensive understanding of a case and can be critical for legal proceedings.

While the other options might suggest circumstances where a report could be expanded upon, they do not directly address the fundamental purpose of supplementary reports, which is to include new and relevant information that arises after the initial report has been submitted.