What are the three ways to gather information when completing a post-incident report?

• A. Photos, noise levels, and traffic counts
• B. Email, calendar invites, and memos
• C. Interviews, training plans, budgets
• D. Radio logs, voice recorders, and arrival reports

Answer: (D)

The key idea is to rely on on-scene records that capture what happened and when. Radio logs provide a chronological record of all radio communications, showing who spoke, what was requested, and the exact times actions or commands were issued. Voice recorders add an additional layer of detail by capturing conversations and directives spoken in the moment, which helps verify decisions and justify actions taken during the incident. Arrival reports document when units arrived, the conditions seen on arrival, initial assessments, and assignments, giving a solid starting point for the incident timeline and accountability on the scene.

Together, these sources give objective, traceable evidence that can be cross-checked with witness statements and other materials, reducing memory bias and discrepancies. Other items like photos, noise levels, traffic counts, or administrative docs (emails, calendars, budgets, training plans) don’t anchor the incident timeline or capture on-scene actions as directly or reliably as these three sources.