Which document must be submitted after an arrest to report the incident?

The correct answer is the arrest report. This document is essential because it serves as the official record of the arrest and details the circumstances surrounding the incident. The arrest report includes information such as the suspect's personal details, the nature of the offense, and the events leading up to the arrest.

This report is critical for legal accountability and provides necessary information for prosecution and further legal proceedings. It enables law enforcement and the courts to track arrests, maintain accurate records, and ensure that proper legal procedures have been followed during the arrest process.

While other documents like witness statements or sworn statements might complement an investigation and provide additional perspectives, they do not replace the need for an arrest report, which is mandated to officially document the arrest itself. The incident log is used to track events but lacks the detailed legal specificity required of an arrest report.