The hooded enforcers who carried out the will of the computer Landru on Beta III, hunting down anyone not absorbed into the placid collective known as the Body.
The Lawgivers are the servants of Landru in the Original Series episode The Return of the Archons. Dressed in cowled robes and carrying hollow staffs that can kill or stun, they speak in flat voices and act only on Landru's instructions.
Their task is to keep the population of Beta III within the Body, the tranquil shared state imposed by the ancient computer. Those who resist are taken to the absorption chamber and brought into the Body, a fate that befalls Doctor McCoy and members of the USS Archon's crew before him.
Kirk and Spock, helped by Marplon and Reger of the secret underground, disguise themselves in Lawgiver robes to reach Landru. When Kirk argues the machine into destroying itself, the Lawgivers are left confused and without direction.