A person accused of a crime has certain rights defined by the federal constitution, state constitutions and various statutes, such as the right to be represented by counsel, the right to compulsory process (issue of subpoena ad testificandum and subpoena duces tecum) to secure the attendance of witnesses, gather evidence and the right to a speedy trial. In some cases, denial of a continuance may infringe on such rights and amount to a violation of due process—which could result in dismissal of an indictment, or provide grounds for reversal.