What could the absence of "V" pattern burns indicate?

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The absence of "V" pattern burns typically suggests that an accelerant was likely used in the fire. In fire investigation, "V" patterns are formed on surfaces as a result of flames traveling upward and outward from the area of origin, which often occurs when a fire burns a structure normally, fueled by combustible materials. If accelerants are applied, they can lead to a rapid spread of the fire in a way that may not create the expected "V" pattern because the fire's dynamics change significantly. Instead of showing a clear progression and burning pattern associated with ordinary fuel sources, the presence of an accelerant can result in more erratic burn patterns or even a total absence of a defined shape, indicating that the fire's behavior was influenced by the accelerant rather than the usual material characteristics. Thus, the absence of "V" patterns can be compelling evidence pointing toward the use of an accelerant in the fire.