Presumed innocence is basic to American jurisprudence. Voter ID presumes guilt of a voter to commit fraud -- before a crime has been committed. Republican partiers, meet Minority Report. The concept of the presumption of innocence is one of the most basic in our system of justice. However, in so many words, it is not codified in the text of the Constitution. This basic right comes to us, like many things, from English jurisprudence, and has been a part of that system for so long, that it is considered common law. The concept is embodied in several provisions of the Constitution, however, such as the right to remain silent and the right to a jury.