Various rights associated with a fair trial are explicitly proclaimed in Article 10 of the Universal Declaration of Human Rights, the Sixth Amendment to the United States Constitution, and Article 6 of the European Convention of Human Rights, as well as numerous other constitutions and declarations throughout the world. There is no binding international law that defines what is not a fair trial; for example, the right to a jury trial and other important procedures vary from nation to nation.
The right to fair trial is very helpful in numerous declarations which represent customary international law, such as the Universal Declaration of Human Rights (UDHR). Though the UDHR enshrines some fair trial rights, such as the presumption of innocence until the accused is proven guilty, in Articles 6, 7, 8 and 11, the key provision is Article 10 which states that:
"Everyone is entitled in full equality to a fair and public hearing by an independent and impartial tribunal, in the determination of his rights and obligations and of any criminal charge against him."
Some years after the UDHR was adopted, the right to a fair trial was defined in more detail in the International Covenant on Civil and Political Rights (ICCPR). The right to a fair trial is protected in Articles 14 and 16 of the ICCPR which is binding in international law on those states that are party to it. Article 14(1) establishes the basic right to a fair trial, article 14(2) provides for the presumption of innocence, and article 14(3) sets out a list of minimum fair trial rights in criminal proceedings. Article 14(5) establishes the right of a convicted person to have a higher court review the conviction or sentence, and article 14(7) prohibits double jeopardy. Article 14(1) states that: