Wildland Fires Investigation Credit Hours: 5 Approximate reading time: 2 Hours Approximate online time: 1 Hour You Must Be Signed In To View This Program. Register Today NFPA Documents Disclaimer- NFPA and other resource editions cited within the CFITrainer.Net site were current as of the release of the respective modules. The field of fire investigation and its guiding documents are constantly evolving and it is incumbent upon the fire investigator to remain up to date with the guidance in the current editions of the documents referenced in all modules on CFITrainer.Net, regardless of which edition was used in the writing of the module. Program Abstract Wildland fires is the term used to describe fires in open land covered by grass, brush or timber. This module illustrates how wildland fires spread, explains how to interpret burn patterns unique to these types of fires, offers methods for investigating wildland fires, and provides information helpful in determining the causes of these types of fires. An understanding of basic fire science and fire investigation techniques is necessary for this module.