This project studies the principal aspects of product liability law and the fundamentals of product safety with regard to alleged defects in a heat gun, a table saw and a crane. Plaintiffs sustained serious injuries, property loss, and in one case death from these alleged defects. From the view point of an engineer, opinions will be developed on each case based on standards, depositions, expert witnesses and complaints. With these opinions in mind, decisions will be made regarding the party at fault for the cause of the accidents