A public defender is an attorney employed or contracted by the state to provide free legal representation to indigent criminal defendants. The institution exists to operationalize the right to counsel, which is recognized in most modern legal systems as a core element of a fair trial.
In the United States, the constitutional foundation comes from the Sixth Amendment, which the Supreme Court extended to indigent state defendants in Gideon v. Wainwright (1963). The Court held unanimously that states must provide counsel to defendants who cannot afford a lawyer in felony cases; Argersinger v. Hamlin (1972) later extended this to any case resulting in incarceration. Federal public defender offices were authorized by the Criminal Justice Act of 1964.
Internationally, the right to publicly funded counsel is recognized in instruments such as Article 14(3)(d) of the International Covenant on Civil and Political Rights (ICCPR) and Article 6(3)(c) of the European Convention on Human Rights, both of which guarantee free legal assistance "when the interests of justice so require" and the defendant lacks means to pay. Delivery models vary widely:
- Staffed public defender offices (e.g., the U.S. federal defenders, Brazil's Defensoria Pública)
- Assigned counsel / panel systems where private lawyers rotate through appointments
- Contract systems in which firms bid to handle indigent caseloads
- Legal aid boards common in the UK, Canada, and Australia
Public defender systems are frequently criticized for chronic underfunding, excessive caseloads, and disparities in resources compared with prosecutors' offices. Studies by the U.S. Department of Justice's Bureau of Justice Statistics and the American Bar Association have repeatedly documented caseloads exceeding recommended limits. Despite these constraints, public defenders handle the majority of criminal cases in jurisdictions with adversarial systems, making the office central to access-to-justice debates and criminal-justice reform agendas.
Example
In 2023, the Missouri State Public Defender system continued litigation over excessive caseloads, arguing that staffing shortfalls prevented constitutionally adequate representation of indigent defendants.
Frequently asked questions
A public defender is paid by the government to represent defendants who cannot afford counsel, while a private attorney is retained and paid directly by the client. Both owe the same ethical and professional duties to their clients.
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