This document discusses the use of thermal imaging cameras (TICs) for firefighter search and rescue. It provides background on how TICs work using infrared technology to see heat signatures. It outlines the basic principles, limitations, and different types of searches that can be conducted with a TIC, including TIC lead searches and landmark searches. The document explains concepts like thermal contrast and image inversion that are important to understand when interpreting TIC images. It also provides specifics on operating the Scott Eagle Imager 160 TIC. The overall purpose is to educate firefighters on how to properly utilize TICs for rapid intervention and locating trapped firefighters.