Force pike, also referred to as a stun pole, was the name of several similar weapons that evolved independently between races and civilizations throughout the galaxy.
The tip of the pole was a vibro-edged head with a stun module that could knock a full-grown Wookiee unconscious using a concentrated nerve impulse similar to that featured in the stun setting of a blaster rifle. At lowest setting, the spear would deliver excruciating electrical shocks, higher settings could result in paralysis and death, and at maximum setting, it could slice through everything from flesh and bone to thin durasteel plating. The weapon could be used for self defense, but also as a torture device. The Emperor's Royal Guards used the force pike mainly as a ceremonial weapon, but sometimes for other reasons; torture was one of them. It should be noted that force pikes were not related to the Force.