Government of Massachusetts
The judiciary of Massachusetts is the branch of the government that interprets and applies the law of Massachusetts, ensures equal justice under law, and provides a mechanism for dispute resolution. The Massachusetts court system consists of the Supreme Judicial Court, the Appeals Court, and the seven Trial Court departments:The judicial power in Massachusetts is reposed in the Supreme Judicial Court, which superintends the entire system of courts. In addition to appellate functions, the Supreme Judicial Court is responsible for the general superintendence of the judiciary and of the bar, makes or approves rules for the operations of all the courts, and in certain instances, provides advisory opinions, upon request, to the Governor and Legislature on various legal issues. The Supreme Judicial Court also oversees several affiliated agencies of the judicial branch, including the Board of Bar Overseers, the Board of Bar Examiners, the Clients' Security Board, the Massachusetts Mental Health Legal Advisors Committee, and Massachusetts Correctional Legal Services.
Court
The practical authority given to the court is known as its jurisdiction () – the court's power to decide certain kinds of questions or petitions put to it. According to William Blackstone's "Commentaries on the Laws of England," a court is constituted by a minimum of three parties: the "actor" or plaintiff, who complains of an injury done; the "reus" or defendant, who is called upon to make satisfaction for it, and the "judex" or judicial power, which is to examine the truth of the fact, to determine the law arising upon that fact, and, if any injury appears to have been done, to ascertain and by its officers to apply a legal remedy. It is also usual in the superior courts to have barristers, and attorneys or counsel, as assistants, though, often, courts consist of additional barristers, bailiffs, reporters, and perhaps a jury.