This book provides a basic source of technical and legal information to participate intelligently in the search for probable causes and discussion of the legal aspects of aircraft accidents. Readers will appreciate the book's refreshing review of the elements of aerodynamics, structural design, powerplants, aircraft control techniques, as well as the nuances of applicable law such as product liability and negligence. The appendix itself is a learning experience. This book could be considered a postgraduate guide for the hardware-oriented aircraft accident investigator, especially the sections on human errors and human factors. This fourth edition includes chapters on the Freedom of Information Act, safety, discovery, spoliation of evidence, Death on the High Seas Act, tort litigation and more.