Today most legal systems nominally reject collective punishment, emphasizing individual responsibility. It is also prohibited in armed conflict under international humanitarian law, including the Fourth Geneva Convention. This was not always the case. The Athenian Draco is remembered for harsh laws, from which we get the word "Draconian" but one of his major reforms was to replace private blood feuds with state-administered justice. Before his code, killings were often avenged by the victim's family, leading to cycles of retaliation.
The shift from collective punishment and presumptions of guilt toward individual responsibility and the presumption of innocence was gradual rather than revolutionary. In many ancient and medieval societies, families, clans, villages, or entire communities could be held liable for the actions of one member, and accused individuals often had to prove their innocence through oaths, ordeals, or social standing. These proofs were often ritual in nature and lacked scientific rigor. Over centuries, especially under the influence of Roman legal principles, canon law, the Renaissance, the Enlightenment, and liberal constitutionalism, legal systems increasingly emphasized that guilt should be based on evidence against a specific individual rather than group affiliation. Thinkers such as Beccaria and Blackstone argued that protecting the innocent from wrongful punishment was more important than maximizing convictions, leading to higher standards of proof, formal rules of evidence, due process, and the modern principle that the prosecution bears the burden of proving guilt beyond a reasonable doubt. Despite these legal prohibitions, governments and armed groups have at times been accused of imposing measures that amount to collective punishment, especially during wars, occupations, and counterinsurgency campaigns. Whether a specific case qualifies is often legally and politically disputed.
The transformation from collective punishment and presumptions of guilt to individual liability and the presumption of innocence was driven largely by changes in state capacity and legal administration. As governments became stronger, more centralized, and more bureaucratic, they relied less on kinship groups to police their own members and more on professional courts, investigators, and judges. Improved record-keeping, forensic methods, written legal codes, and standardized procedures made it increasingly feasible (but not necessaril
Post too long. Click here to view the full text.