What is the role of standard operating procedures (SOPs) in the investigation?

• A. They guide on-scene actions, evidence handling, interviewing, and communication to maintain consistency and safety.
• B. They determine probable cause of the mishap.
• C. They establish legal liability for parties involved.
• D. They specify flight crew training requirements.

Answer: (A)

Standard operating procedures provide a framework investigators use to perform the inquiry in a uniform and safe way. They outline how to act on scene, how to handle and preserve evidence to maintain its integrity (including chain of custody), how to conduct interviews to gather reliable information, and how to communicate findings and status to stakeholders. This structured approach ensures consistency across different investigators and shifts, minimizes the risk of contamination or missing steps, and supports the credibility and defensibility of the investigation’s results.

SOPs do not determine probable cause or assign liability; those outcomes come from analyzing the collected facts and applying applicable standards and laws. They also aren’t about flight crew training requirements, which are set by regulatory and certification standards separate from investigative procedures.