What does Chapter 20 of NFPA 921 emphasize in fire investigations?

Chapter 20 of NFPA 921 emphasizes the critical nature of investigating every fire scene that involves serious injuries. This chapter highlights that a thorough investigation is essential not only for determining the cause and origin of the fire but also for understanding the dynamics that may have led to serious injuries or fatalities. Investigating such fire scenes can provide valuable insights that contribute to fire prevention efforts and enhance public safety.

The significance of these investigations lies in their potential to uncover patterns, identify hazards, and hold accountable those responsible for any negligence that may have occurred. Each fire incident that results in serious injury can yield important information that can help in developing strategies to prevent future incidents. Thus, this approach by NFPA 921 aligns with the overall goal of improving safety measures and protecting lives.