What is the legal document called that summons a person to court to respond to an indictment?

The legal document that summons a person to court to respond to an indictment is referred to as a subpoena. A subpoena is a formal writ issued by a competent authority commanding the presence of a person at a legal proceeding to give testimony or produce evidence. In the context of responding to an indictment, a subpoena would compel an individual to appear in court to address the charges they face.

An arraignment, on the other hand, is a specific court proceeding where an accused person is formally read the charges and asked to enter a plea. While it is part of the legal process following an indictment, it is not the document that summons an individual to court.