Introduction to Evidence Credit Hours: 4 Approximate reading time: 2.5 Hours Approximate online time: 1.5 Hours 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 This program is the first in a series that will look at evidence from the perspective of the fire investigator. The program introduces the fire investigator to the concept of evidence, the legal aspects involved in the collection and presentation of evidence in a legal proceeding, and how the investigator should prepare to present the evidence collected in court.