Kirpan

From Karate, Kungfu, Wrestling, Mixed Fighting Information Source

Kirpan is the ceremonial dagger always carried by a Sikh. It is a typical knife that usualy has a curved blade. The kirpan has both a physical function, as a defensive weapon, as well as a symbolic function because it should only be used to prevent violence to be done to a defenseless person when all other means to do so have failed. Typically made from iron, kirpans range in blade size from 3 inches to over 3 feet and Sikhs in the west wear kirpans of about 3.5 inch blade size. Most Sikhs wear the kirpan under their clothes and most people observing a random Sikh would not be aware that they were carrying a kirpan. The special techniques used make this weapon very dangerous.