Impalement, as a method of torture and execution, is the penetration of a human by an object such as a stake, pole, spear, or hook, often by the complete or partial perforation of the torso. It was particularly used in response to "crimes against the state" and regarded across a number of cultures as a very harsh form of capital punishment and recorded in myth and art. Impalement was also used during times of war to suppress rebellions, punish traitors or collaborators, and punish breaches of military discipline.

Capital punishment, also known as the death penalty and formerly called judicial homicide, is the state-sanctioned practice of killing a person as a punishment for a crime, usually following an authorised, rule-governed process to conclude that the person is responsible for violating norms that warrant said punishment. The sentence ordering that an offender be punished in such a manner is known as a death sentence, and the act of carrying out the sentence is known as an execution. A prisoner who has been sentenced to death and awaits execution is condemned and is commonly referred to as being "on death row". Etymologically, the term capital refers to execution by beheading, but executions are carried out by many methods, including hanging, shooting, lethal injection, stoning, electrocution, and gassing.