A grand jury is a legal body empowered to conduct official proceedings and investigate potential criminal conduct, and determine whether criminal charges should be brought. A grand jury may compel the production of documents and compel sworn testimony of witnesses to appear before it. A grand jury is separate from the courts, which do not preside over its functioning.
The United States and Liberia are the only countries that retain grand juries, though other common law jurisdictions formerly employed them, and most others now employ some other form of preliminary hearing. Grand juries perform both accusatory and investigatory functions. The investigatory functions of grand juries include obtaining and reviewing documents and other evidence, and hearing sworn testimonies of witnesses who appear before it; the accusatory function determines whether there is probable cause to believe that one or more persons committed a certain offence within the venue of a district court.
A grand jury in the United States is usually composed of 16 to 23 citizens, though in Virginia it has fewer members for regular or special grand juries. In Ireland, they also functioned as local government authorities. In Japan, the Law of July 12, 1948 created the Kensatsu Shinsakai (Prosecutorial Review Commission or PRC system), inspired by the American system.
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The function of a grand jury is to accuse persons who may be guilty of an offense, but the institution is also a shield against unfounded and oppressive prosecution. It is a means for lay citizens, representative of the community, to participate in the administration of justice. It can also make presentments on crime and maladministration in its area. The traditional number of the grand jury is 23.
The mode of accusation is by a written statement in solemn form (indictment) describing the offense with proper accompaniments of time and circumstances, and certainty of act and person or by a mode less formal, which is usually the spontaneous act of the grand jury, called presentment. No indictment or presentment can be made except by concurrence of at least twelve of the jurors. The grand jury may accuse upon their own knowledge, but it is generally done upon the testimony of witnesses under oath and other evidence heard before them. The proceedings of grand jury are, in the first instance, at the instigation of the government or other prosecutor, and ex parte and in secret deliberation. The accused has no knowledge nor right to interfere with their proceedings.
If they find the accusation true, which is usually drawn up in form by the prosecutor or an officer of the court, they write upon the indictment the words "a true bill" which is signed by the foreman of the grand jury and presented to the court publicly in the presence of all the jurors. If the indictment is not proven to the satisfaction of the grand jury, the word "ignoramus"  or "not a true bill" is written upon it by the grand jury, or by their foreman and then said to be ignored, and the accusation is dismissed as unfounded. (The potential defendant is said to have been "no-billed" by the grand jury.) If the grand jury returns an indictment as a true bill ("billa vera"), the indictment is said to be founded and the party to stand indicted and required to be put on trial.
The first instance of a grand jury can be traced back to the Assize of Clarendon in 1166, an Act of Henry II of England. Henry's chief impact on the development of the English monarchy was to increase the jurisdiction of the royal courts at the expense of the feudal courts. Itinerant justices on regular circuits were sent out once each year to enforce the "King's Peace". To make this system of royal criminal justice more effective, Henry employed the method of inquest used by William the Conqueror in the Domesday Book. In each shire, a body of important men was sworn (juré) to report to the sheriff all crimes committed since the last session of the circuit court. Thus originated the more recent grand jury that presents information for an indictment. The grand jury was later recognized by King John in Magna Carta in 1215 on demand of the nobility.
The Grand Jury can be said to have "celebrated" its 800th birthday in 2015, because a precursor to the Grand Jury is defined in Article 61, the longest of the 63 articles of Magna Carta, also called Magna Carta Libertatum (Latin: "the Great Charter of Liberties") executed on 15 June 1215 by King John and by the Barons. The document was primarily composed by the Archbishop of Canterbury, Stephen Langton (1150-1228). He and Cardinal Hugo de Sancto Caro developed schemas for division of the Bible into chapters and it is the system of Archbishop Langton which prevailed. He was a Bible scholar, and the concept of the Grand Jury may possibly derive from Deuteronomy 25:1: "If there be a controversy between men, and they come unto judgment, that the judges may judge them; then they shall justify the righteous, and condemn the wicked." (King James Version) Thus the Grand Jury has been described as the "Shield and the Sword" of the People: as a "Shield for the People" from abusive indictments of the government- or malicious indictments of individuals- and as the "Sword of the People" to cut away crime by any private individual; or to cut away crime by any public servant, whether in the Judicial, Executive, or Legislative branches.
On 2 July 1681, a popular statesman, Anthony Ashley Cooper, 1st Earl of Shaftesbury was arrested on suspicion of high treason and committed to the Tower of London. He immediately petitioned the Old Bailey on a writ of habeas corpus, but the Old Bailey said it did not have jurisdiction over prisoners in the Tower of London, so Cooper had to wait for the next session of the Court of King's Bench. Cooper moved for a writ of habeas corpus on 24 October 1681, and his case finally came before a grand jury on 24 November 1681.
The government's case against Cooper was particularly weak – the government admitted that most of the witnesses brought against Cooper had already perjured themselves, and the documentary evidence was inconclusive; and the jury was handpicked by the Whig Sheriff of London. For these reasons the government had little chance of securing a conviction, and on 13 February 1682 the case was dropped when the Grand Jury issued an ignoramus bill, rather than comply with the King's intent of a "True Bill", known as a Grand Jury Indictment.
The grand jury's theoretical function against abuse of executive power was seen during the Watergate crisis in America, in United States v. Nixon, the U.S. Supreme Court ruled 8 to 0 on 23 July 1974 (Justice William Rehnquist who had been appointed by Nixon recused himself from the case) that executive privilege applied only to the co-equal branches, the legislative and judicial, not to grand jury subpoenas, thus implying a grand jury constituted protections equaled to a "fourth branch of government". The second Watergate grand jury indicted seven lawyers in the White House, including former Attorney General John Mitchell and named President Nixon as a "secret, un-indicted, co-conspirator." Despite evading impeachment, Nixon was still required to testify before a grand jury.
Similarly, in 1998, President Clinton became the first sitting president required to testify before a grand jury as subject of an investigation by the Office of Independent Counsel. The testimony came after a four-year investigation into Clinton and his wife Hillary's alleged involvement in several scandals including Whitewater and the Rose Law Firm. Revelations from the investigation sparked a battle in Congress over whether or not to impeach Clinton.
The sheriff of every county was required to return to every quarter sessions and assizes (or more precisely the commission of oyer and terminer and of gaol delivery), 24 men of the county "to inquire into, present, do and execute all those things which, on the part of our Lord the King (or our Lady the Queen), shall then be commanded them". Grand jurors at the assizes or at the borough quarter sessions did not have property qualifications; but, at the county quarter sessions, they had the same property qualification as petty jurors. However, at the assizes, the grand jury generally consisted of gentlemen of high standing in the county.
After the court was opened by the crier making proclamation, the names of those summoned to the grand jury were called and they were sworn. They numbered at least 14 and not more than 23. The person presiding (the judge at the assizes, the chairman at the county sessions, the recorder at the borough sessions) gave the charge to the grand jury, i.e. he directed their attention to points in the various cases about to be considered which required explanation.
The charge having been delivered, the grand jury withdrew to their own room, having received the bills of indictment. The witnesses whose names were endorsed on each bill were sworn as they came to be examined, in the grand jury room, the oath being administered by the foreman, who wrote his initials against the name of the witness on the back of the bill. Only the witnesses for the prosecution were examined, as the function of the grand jury was merely to inquire whether there was sufficient ground to put the accused on trial. If the majority of them (and at least 12) thought that the evidence so adduced made out a sufficient case, the words "a true bill" were endorsed on the back of the bill. If they were of the opposite opinion, the phrase "not a true bill", or the single Latin word ignoramus ("we do not know" or "we are ignorant (of)"), was endorsed instead and the bill was said to be "ignored" or thrown out. They could find a true bill as to the charge in one count, and ignore that in another; or as to one defendant and not as to another; but they could not, like a petty jury, return a special or conditional finding, or select part of a count as true and reject the other part. When some bills were "found", some of the jurors came out and handed the bills to the clerk of arraigns (in assizes) or clerk of the peace, who announced to the court the name of the prisoner, the charge, and the endorsements of the grand jury. They then retired and considered other bills until all were disposed of; after which they were discharged by the judge, chairman, or recorder.
If a bill was thrown out, although it could not again be preferred to the grand jury during the same assizes or sessions, it could be preferred at subsequent assizes or sessions, but not in respect of the same offence if a petty jury had returned a verdict.
Ordinarily, bills of indictment were preferred after there had been an examination before the magistrates. But this need not always take place. With certain exceptions, any person could prefer a bill of indictment against another before the grand jury without any previous inquiry into the truth of the accusation before a magistrate. This right was at one time universal and was often abused. A substantial check was put on this abuse by the Vexatious Indictments Act 1859. This Act provided that for certain offences which it listed (perjury, libel, etc.), the person presenting such an indictment must be bound by recognizance to prosecute or give evidence against the accused, or alternatively had judicial permission (as specified) so to do.
If an indictment was found in the absence of the accused, and he/she was not in custody and had not been bound over to appear at assizes or sessions, then process was issued to bring that person into court, as it is contrary to the English law to "try" an indictment in the absence of the accused.
The grand jury's functions were gradually made redundant by the development of committal proceedings in magistrates' courts from 1848 onward when the (three) Jervis Acts, such as the Justices Protection Act 1848, codified and greatly expanded the functions of magistrates in pre-trial proceedings; these proceedings developed into almost a repeat of the trial itself. In 1933 the grand jury ceased to function in England, under the Administration of Justice (Miscellaneous Provisions) Act 1933 and was entirely abolished in 1948, when a clause from 1933 saving grand juries for offences relating to officials abroad was repealed by the Criminal Justice Act 1948.
The grand jury was introduced in Scotland, solely for high treason, a year after the union with England, by the Treason Act 1708, an Act of the Parliament of Great Britain. Section III of the Act required the Scottish courts to try cases of treason and misprision of treason according to English rules of procedure and evidence. This rule was repealed in 1945.
The first Scottish grand jury under this Act met at Edinburgh on 10 October 1748 to take cognisance of the charges against such rebels as had not surrendered, following the Jacobite rising of 1745.
An account of its first use in Scotland illustrates the institution's characteristics. It consisted of 23 good and lawful men, chosen out of 48 who were summoned: 24 from the county of Edinburgh (Midlothian), 12 from Haddington (East Lothian) and 12 from Linlithgow (West Lothian). The court consisted of three judges from the High Court of Justiciary (Scotland's highest criminal court), of whom Tinwald (Justice Clerk) was elected preses (presiding member). Subpoenas under the seal of the court and signed by the clerk were executed on a great number of persons in different shires, requiring them to appear as witnesses under the penalty of £100 each. The preses named Sir John Inglis of Cramond as Foreman of the Grand Jury, who was sworn first in the English manner by kissing the book; the others followed three at a time; after which Lord Tinwald, addressing the jurors, informed them that the power His Majesty's advocate possessed before the union, of prosecuting any person for high treason, who appeared guilty on a precognition taken of the facts, being now done away, power was lodged with them, a grand jury, 12 of whom behoved to concur before a true bill could be found. An indictment was then preferred in court and the witnesses endorsed on it were called over and sworn; on which the jury retired to the exchequer chambers and the witnesses were conducted to a room near it, whence they were called to be examined separately. Two solicitors for the crown were present at the examination but no-one else; and after they had finished and the sense of the jury was collected, the indictment was returned a "true bill", if the charges were found proved, or "ignoramus" if doubtful. The proceedings continued for a week, in which time, out of 55 bills, 42 were sustained and 13 dismissed.
Further Acts of Parliament in the 19th century regarding treason did not specify this special procedure and the Grand Jury was used no longer.
In Ireland, grand juries were active from the Middle Ages during the Lordship of Ireland in parts of the island under the control of the English government (The Pale), that was followed by the Kingdom of Ireland. They mainly functioned as local government authorities at the county level. The system was so-called as the grand jurors had to present their public works proposals and budgets in court for official sanction by a judge. Grand jurors were usually the largest local payers of rates, and therefore tended to be the larger landlords, and on retiring they selected new members from the same background.
Distinct from their public works function, as property owners they also were qualified to sit on criminal juries hearing trials by jury, as well as having a pre-trial judicial function for serious criminal cases. Many of them also sat as magistrates judging the less serious cases.
They were usually wealthy "country gentlemen" (i.e. landowners, landed gentry, farmers and merchants):
A country gentleman as a member of a Grand Jury...levied the local taxes, appointed the nephews of his old friends to collect them, and spent them when they were gathered in. He controlled the boards of guardians and appointed the dispensary doctors, regulated the diet of paupers, inflicted fines and administered the law at petty sessions.
From 1691 to 1793, Dissenters and Roman Catholics were excluded from membership. The concentration of power and wealth in a few families caused resentment over time. The whole local government system started to become more representative from the passing of the Municipal Corporations (Ireland) Act 1840. Grand juries were replaced by democratically elected County Councils by the Local Government (Ireland) Act 1898, as regards their administrative functions.
After the formation of Irish Free State in 1922, grand juries were not required, but they persisted in Northern Ireland until abolished by the Grand Jury (Abolition) Act of the Parliament of Northern Ireland in 1969.
The Fifth Amendment to the Constitution of the United States reads, "No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a grand jury ..."
In the early decades of the United States grand juries played a major role in public matters. During that period counties followed the traditional practice of requiring all decisions be made by at least 12 of the grand jurors, (e.g., for a 23-person grand jury, 12 people would constitute a bare majority). Any citizen could bring a matter before a grand jury directly, from a public work that needed repair, to the delinquent conduct of a public official, to a complaint of a crime, and grand juries could conduct their own investigations.
In that era most criminal prosecutions were conducted by private parties, either a law enforcement officer, a lawyer hired by a crime victim or his family, or even by laymen. A layman could bring a bill of indictment to the grand jury; if the grand jury found there was sufficient evidence for a trial, that the act was a crime under law, and that the court had jurisdiction, it would return the indictment to the complainant. The grand jury would then appoint the complaining party to exercise the authority[clarification needed] of an attorney general, that is, one having a general power of attorney to represent the state in the case.
The grand jury served to screen out incompetent or malicious prosecutions. The advent of official public prosecutors in the later decades of the 19th century largely displaced private prosecutions.
While all states currently have provisions for grand juries, today approximately half of the states employ them and 22 require their use, to varying extents. The constitution of Pennsylvania required, between 1874 and 1968, that a grand jury indict all felonies.
Grand juries were once common across Canada. The institution of British civil government in 1749 at Nova Scotia brought the judicature system peculiar to that form, and the grand jury was inherent to it. A similar form derived in Quebec from the promise of the Royal Proclamation of 1763 that a faithful copy of Laws of England would be instituted in the North American possessions of the Crown. Archival records are found that document the presentments of a grand jury in Quebec as early as 16 October 1764. One of the chief complaints was related to the jury trial, and the use of language. The desire for English law was a driver for the division in 1791 of Quebec, as it was then known, at the Ottawa river into Upper Canada and Lower Canada, as each of the two groups (French and English) desired to maintain their traditions. In point of fact, the second law passed in Upper Canada relates to (petit) jury trial. This was continued so that Chapter 31 of the 1859 Consolidated Statutes of Upper Canada specifies the constitution of Grand and Petit Juries in the province (now known as Ontario). The colony at St. John's Island, ceded by France in 1763, and separated on 30 May 1769 from Nova Scotia, became Prince Edward Island on 29 November 1798. Prince Edward Island derived its grand jury from its administrative parent between 1763 and 1769, Nova Scotia, as did Sunbury County when it was split off in 1784 to become the Colony of New Brunswick. The Colony of British Columbia, when it was formed on 2 August 1858, instituted a grand jury, along with the Colony of the Queen Charlotte Islands (1853–1863) and the Colony of Vancouver Island (1848–1866) when the latter were absorbed by the former.
Old courthouses with the two jury boxes necessary to accommodate the 24 jurors of a grand jury can still be seen. The grand jury would evaluate charges and return what was called a "true bill (of indictment)" if the charges were to proceed. or a verdict of nolle prosequi if not. The practice gradually disappeared in Canada over the course of the twentieth century, after being the subject of extended discussions late in the 19th. It was ultimately abolished in 1984 when the Nova Scotia courts formally ended the practice. Prince Edward Island maintained a grand jury as recently as 1871.
The grand jury existed in New South Wales for a short period in the 1820s. The New South Wales Act 1823 (UK) enabled the establishment of Quarter Sessions, as a subsidiary court structure below that of the Supreme Court. Francis Forbes, Chief Justice, reasoned that this entailed the creation of Quarter Sessions as they existed in England. Thus, inadvertently, trial by jury and indictment by grand jury were introduced, but only for these subsidiary courts. Grand Juries met in Sydney, Parramatta, Windsor and other places. This democratic method of trial proved very popular, but was resented by conservatives. Eventually, conservative elements in the colony were successful in having these innovations suppressed by the Australian Courts Act 1828 (UK). George Forbes, a member of the Legislative Council, unsuccessfully moved for the reintroduction of Grand Juries in 1858, but this was thwarted by the Attorney-General and the Chief Justice.
In South Australia and Western Australia, grand juries existed for longer periods of time. In South Australia, the first Grand Jury sat on 13 May 1837, but it was abolished in 1852. In Western Australia, by the Grand Jury Abolition Act Amendment Act 1883 (WA), the Grand Jury was abolished (section 4: A Grand Jury shall not be summoned for the Supreme Court of Western Australia, nor for any General Quarter Sessions for the said Colony).
The Australian state of Victoria maintained, until 2009, provisions for a grand jury in the Crimes Act 1958 under section 354 indictments, which had been used on rare occasions by individuals to bring other persons to court seeking them to be committed for trial on indictable offences. Grand juries were introduced by the Judicature Act 1874 and have been used on a very limited number of occasions. Their function in Victoria particularly relates to alleged offences either by bodies corporate or where magistrates have aborted the prosecution.
Trial by jury was introduced in the Cape Colony by Richard Bourke, Lieutenant Governor and acting Governor of the colony between 1826-28. The acting Governor, who was later influential in the establishment of jury trial in New South Wales, obtained the consent of the Secretary of State for the Colonies in August 1827 and the first Charter of Justice was issued on 24 August 1827.
Jury trial was brought into practical operation in 1828 and the 1831 Ordinance 84 laid down that criminal cases would be heard by a panel of nine, selected from males aged between 21 and 60, owning or renting property to a value of £1:17 shillings per annum or having liability for taxes of 30 shillings in Cape Town and 20 shillings outside the town. Black (i.e. non-white) jurors were not entirely excluded and sat occasionally. This is not to imply, however, that juries did not operate in an oppressive manner towards the Black African and Asian residents of the Cape, whose participation in the jury lists was, in any event, severely limited by the property qualification. The property qualification was amended in 1831 and 1861 and, experimentally, a grand jury came into operation.
The grand jury was established for Cape Town alone. It met quarterly. In 1842 it was recorded that it served a district of 50,000 inhabitants and in one quarterly session there were six presentments (1 homicide, 2 assaults, 1 robbery, 1 theft, 1 fraud).
As elsewhere, the judge could use his charge to the Grand Jury to bring matters of concern to him to the attention of the public and the government. In May 1879 Mr. Justice Fitzpatrick, returning from circuit in the northern and western parts of Cape Colony, gave a charge to the grand jury at the Criminal Sessions at Cape Town, in which, after congratulating them upon the lightness of the calendar, he observed there were indications in the country of a growing mutual bad feeling between the races, etc. This was reported in the Cape Argus and was a subject of a question to the government in the House of Commons in London.
The jury law of 1791 created an eight-man jury d'accusation in each arrondissement (a subdivision of the departement) and a 12-man jury de jugement in each departement. In each arrondissement the procureur-syndic drew up a list of 30 jurors from the electoral roll every three months for the jury d'accusation. There was no public prosecutor or juge d'instruction. Instead the police or private citizens could bring a complaint to the Justice of the Peace established in each canton (a subdivision of the arrondissement). This magistrate interrogated the accused to determine whether grounds for prosecution existed and if so sent the case to the directeur du jury (the director of the jury d'accusation), who was one of the arrondissement's civil court judges, and who served in the post for six months on a rotating basis. He decided whether to dismiss the charges or, if not, whether the case was a délit (misdemeanour) or a crime (felony, i.e. imprisonable for 2 years or more). Délits went to the tribunal de police correctionnelle of the arrondissement, while for crimes the directeur de jury convoked the jury d'accusation of the arrondissement, in order to get an indictment. The directeur du jury drew up the bill of indictment (act d'accusation) summarising the charges to be presented to the jury d'accusation. The directeur made a presentation to the jury in the absence of the accused and the jury heard the witnesses. The jury then decided by majority vote whether there were sufficient grounds for the case to go to the tribunal criminel of the departement. Between 1792-5 there was no property qualification for jurors.
The functions of the jury d’accusation were prescribed in the law of 1791 passed by the Constituent Assembly and were maintained and re-enacted in the Code des Délits et des Peines of 3 Brumaire, Year 4 (25 October 1795) and this was the operative law until it was abolished in 1808. Special juries and special grand juries were originally defined in law, for cases thought to require more qualified jurors, but these were abolished in Year 8 (1799).
After World War II, under the influence of the Allies, Japan passed the Prosecutorial Review Commission Law on July 12, 1948, which created the Kensatsu Shinsakai (or Prosecutorial Review Commission (PRC) system), a figure analogue to the grand jury system. However, until 2009 the PCR's recommendations were not binding, and were only regarded as advisory. Additionally, a survey conducted by the Japanese Cabinet Office on October 1990 showed that 68. 8% of surveyed Japanese citizens were not familiar with the PRC system. On May 21, 2009, the Japanese government introduced new legislation which would make the PRC's decisions binding. A PRC is made up of 11 randomly selected citizens, is appointed to a six-month term, and its primary purpose is examining cases prosecutors have chosen not to continue prosecuting. It has therefore been perceived as a way to combat misfeasance in public officials.
From 1945 to 1972 Okinawa was under American administration. Grand Jury proceedings were held in the territory from 1963 - 1972. By an ordinance of the civil administration of the Ryukyu Islands promulgated in 1963, grand jury indictment and petit jury trial were assured for criminal defendants in the civil administration courts. This ordinance reflected the concern of the U.S. Supreme Court  that U.S. civilians tried for crimes abroad under tribunals of U.S. provenance should not be shorn of the protections of the U.S. Bill of Rights. Indeed, the District Court in Washington twice held that the absence of the jury system in the civil administration courts in Okinawa invalidated criminal convictions
By article 21 of the Constitution of Liberia, 'No person shall be held to answer for a capital or infamous crime except in cases of impeachment, cases arising in the Armed Forces and petty offenses, unless upon indictment by a Grand Jury". For example, the national Port Authority’s managing director was indicted by the Monteserrado County Grand Jury in July 2015, on charges of economic sabotage, theft of property and criminal conspiracy.
Grand Jury in Liberia dates from the time of the original constitution in 1847.
Under the administration of the Sierra Leone Company, which began in 1792, the Governor and Council or any two members thereof, being also Justices of the Peace, held Quarter Sessions for the trial of offences committed within the colony. The process for indictment etc. was the same as the practice in England or as near as possible thereto. To effect this, they were empowered to issue their warrant or precept to the Sheriff, commanding him to summon a Grand Jury to sit at the court of Quarter Sessions. Grand Jury continued in operation after the transfer to the colony to the Crown in 1807.
Governor Kennedy (1852–1854) was concerned that jurors were frustrating government policy by being biased in certain cases; in particular he felt that Liberated Africans on the Grand Jury would never convict another Liberated African on charges of owning or importing slaves. He promulgated the Ordinance of 29 Nov 1853 which abolished the grand jury. Opposition was immediately mounted in Freetown. A public meeting launched a petition with 550 names to the Colonial Secretary in London, and the opposition declared that the Kennedy ordinance was a reproach upon the loyalty of the Community. Grand Jury had been considered one colonial body representative of local opinion and the Colonial Secretary's support for Kennedy upholding the abolition inspired a round of agitation for local voice in government decision-making.