The fire investigation process usually begins with examination of:

• A. Exterior
• B. Interior
• C. Surrounding area
• D. Roof

Answer: (A)

Beginning with the exterior gives a quick safety check and the first clues about where and how the fire started. From outside you can observe scorch patterns, smoke staining, melted siding, and vent openings that point toward the ignition area, while also assessing window conditions, access points, and any hazards that could threaten responders. This initial exterior view helps you plan the interior search, identify likely origin zones, and decide whether to enter or ventilate first. Interior examination is essential but carries more risk, and is guided by what you learn outside. The surrounding area and the roof are also reviewed, but usually after the exterior has been assessed and the scene is stabilized. In short, starting outside keeps investigators safer and provides the most immediate, actionable information for locating the origin and understanding fire behavior.