This chapter notes how ancient societies used capital punishment, highlighting methods of execution and various legal codes (e.g., Draco's Code and the Code of Hammurabi) authorizing executions. The chapter discusses the "divine right of kings," corporal punishments used in prior centuries, and the lex talionis doctrine. It also highlights how punishment practices were tied to religious and societial beliefs, including interpretation of religious texts. The chapter traces the change in the law from the Dark Ages to the Enlightenment, taking note of how judicial torture--a practice associated with contintental European civil law systems--was outlawed in certain locales in the eighteenth century even as harsh systems of punishment (e.g., the English "Bloody Code") persisted. The chapter also describes the Enlightenment thinkers--John Bellers, George Fox, William Penn, Voltaire, Montesquieu, Frederick II, Cesare Beccaria, and William Blackstone--who critiqued torture and capital punishment or called for the death penalty's abolition or curtailment. The chapter describes the death penalty's abolition in Tuscany (1786) and Austria (1787) and how the Enlightenment shaped the law.

This chapter describes the immutable characteristics of capital punishment, which kills people and uses death threats by state actors. Death threats are ordinarily treated as unlawful acts, with threats of impending death treated as psychological torture where a person is helpless to prevent death. The chapter discusses how mock executions and various corporal punishments are already treated as torturous acts, including by laws and legal commentators. After discussing the duty of government officials to protect people, including inmates, from harm, as well as how jurists in multiple jurisdictions have recognized the death row phenomenon (i.e., the suffering associated with prolonged stays on death row), the chapter describes how countries have refused to extradite individuals without assurances that the death penalty will not be sought. The U.N. Convention Against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment contains a "lawful sanctions" carve-out to the definition of torture, but case law makes clear that lawful sanctions cannot themselves amount to torture. The chapter argues death sentences inflict severe pain and suffering amounting to torture.

The Conclusion summarizes the book's major themes and arguments, concluding that the death penalty has the immutable characteristics and indicia of torture. The Conclusion asserts that capital punishment violates fundamental human rights, including the right to be free from torture. Non-lethal corporal punishments and mock executions have already been prohibited by law, and the Conclusion asserts that capital punishment should be barred by an existing jus cogens norm--the peremptory norm of international law absolutely prohibiting torture--to stigmatize the practice of capital punishment as a torturous one that has no place in the twenty-first century or in law.