Execution by elephant was a common method of capital punishment in South and Southeast Asia, particularly in India, where Asian elephants were used to crush, dismember, or torture captives in public executions. The animals were trained and versatile, able to kill victims immediately or to torture them slowly over a prolonged period. Most commonly employed by royalty, the elephants were used to signify both the ruler's absolute power and his ability to control wild animals.
The sight of elephants executing captives both horrified and attracted the interest of European travelers, and was recorded in numerous contemporary journals and accounts of life in Asia. The practice was eventually suppressed by the European empires that colonised the region in the 18th and 19th centuries. While primarily confined to Asia, the practice was occasionally adopted by Western powers, such as Ancient Rome and Carthage, particularly to deal with mutinous soldiers.
The intelligence, domesticability and versatility of the elephant gave it considerable advantages over other wild animals such as lions and bears used as executioners by the Romans. Elephants are more tractable than horses: while a horse can be trained to charge into battle, it will not willingly trample an enemy soldier, and will instead step over him. Elephants will trample their enemies, hence the popularity of war elephants with generals such as Hannibal. Elephants can be trained to execute prisoners in a variety of ways, and can be taught to prolong the agony of the victim by inflicting a slow death by torture or to kill the condemned quickly by stepping on the head.
Historically, the elephants were under the constant control of a driver or mahout, thus enabling a ruler to grant a last-minute reprieve and display merciful qualities. Several such exercises of mercy are recorded in various Asian kingdoms. The kings of Siam trained their elephants to roll the convicted person "about the ground rather slowly so that he is not badly hurt". The Mughal Emperor Akbar the Great is said to have "used this technique to chastise 'rebels' and then in the end the prisoners, presumably much chastened, were given their lives". On one occasion, Akbar was recorded to have had a man thrown to the elephants to suffer five days of such treatment before pardoning him. Elephants were occasionally used in trial by ordeal in which the condemned prisoner was released if he managed to fend off the elephant.