The U.S. Supreme Court case In re Winship in 1969 addressed the standard of proof required in juvenile delinquency proceedings. The court ruled that the Constitution's Fourteenth Amendment Due Process Clause requires that every element of a criminal offense must be proven beyond a reasonable doubt, not by just preponderance of evidence, which was previously used in some juvenile courts. This decision came after a twelve-year-old boy named Samuel Winship was adjudged as a juvenile delinquent for stealing $112 from a woman’s purse based on preponderance of evidence rather than proof beyond reasonable doubt. The ruling emphasized that regardless if it is an adult or minor involved, the same constitutional protections should apply when facing charges for criminal offenses.

In the dissenting opinion for In re Winship, Justice Black argued that the Constitution does not require proof beyond a reasonable doubt in all criminal cases. He contended that each state should have the freedom to set its own standards of proof. Furthermore, he believed that requiring such a high standard could potentially allow guilty individuals to escape punishment due to insufficient evidence. Justice Black also expressed concern about overstepping judicial boundaries and interfering with legislative decisions on matters of social policy, which he felt was outside their purview. He feared this ruling would lead courts into an area where they lack competence and risk undermining public respect for laws by making it harder to convict offenders.