A law enforcement challenge coins, no matter what type it is - a law enforcement challenge coin or another type - is to show the dedication and pride of the carrier of the coin. The first challenge coins are said to have shown up around World War I. The U.S. Army Air Service pilots were adventurous types from Ivy League schools that joined the service to fly fighter planes.

The tale of the challenge coin is said to have been the idea of one such wealthy pilot who had bronze coins plate...