Heinrich is among the founders of the modern safety profession, and while decades of additional experience and science have shown us that part of his work is flawed, still a great deal can be learned from his heritage. Also, he has left us at least two strong safety metaphors: the dominos and the ...

In the 1930's, William Herbert Heinrich, an employee working for Traveler's Insurance Company, published groundbreaking theories about safety and health in the workplace. One such theory became known as Heinrich's Law: that in a workplace, for every accident that causes a major injury, there are 29 ...