N. A. McDonald, Siam: Its Government, Manners, Customs…
“ Persons often confess when they are innocent, from fear of the torture.They punish with death murder, highway-robbery, and treason. Their mode of execution is decapitation. The criminals are brought out in chains, and a clamp consisting of two bamboo poles is placed on the neck. He is then made to sit down on the ground, the one end of the clamp resting on the ground. They then most generally drug the criminal, so as to produce stupor, amounting oftentimes to unconsciousness, and also stop up their ears with soft mud. At a signal the executioner runs out with a sword and cuts off the head. ”
