CSI: NY2004

Detective Mac Taylor:
Never seen a personal collection like this.

Paul Martin:
These are decorative artifacts.

Detective Mac Taylor:
They're deadly artifacts. The kama. When farmers were forbidden to own weapons, they developed this from a sickle used to cut rice. Increased curvature of the blade means more cutting power to remove limbs. The fighting fan. Carried in ancient times by female courtesans. Blades were inserted in the tips, which could be used to sever the jugular vein. Chinese spear. The red horse hair below the blade is used to distract an opponent.

Paul Martin:
You know your weapons.

Detective Mac Taylor:
Because they help me know my killers.