ST. LOUIS (AP) — A Missouri grand jury has been hearing evidence for months as it weighs whether to indict Ferguson police officer Darren Wilson in the Aug. 9 fatal shooting of Michael Brown, which was followed by sometimes violent protests. Some answers to common questions about the grand jury:
Q: What is the grand jury deciding?
A: The grand jury is considering whether there is enough evidence to charge Wilson with a crime and, if so, what that charge should be.
Q: How is the grand jury different from other juries?
A: The grand jury will determine only whether probable cause exists to indict Wilson, not whether he is guilty. If the jury indicts him, a separate trial jury will be seated to decide whether to convict or acquit him.
Q: When will the grand jury make a decision?
A: There is no specific date for a decision to be revealed. St. Louis County Prosecuting Attorney Bob McCulloch has said he expects grand jurors to reach a decision in mid- to late November. But that timing ultimately is up to the grand jury.
Q: How many people are on the grand jury and how were they selected?
A: The grand jury is composed of 12 people "selected at random from a fair cross-section of the citizens," according to Missouri law. The jury is 75 percent white: six white men, three white women, two black women and one black man. St. Louis County overall is 70 percent white, but about two-thirds of Ferguson's residents are black. Brown was black. The officer is white.
Q: Was the grand jury appointed for this specific case?
A: No. It was appointed for a four-month term. The grand jury had been hearing routine cases around the time Brown was killed and then turned its attention to the shooting.
The jury's term was due to expire Sept. 10. That same day, county Judge Carolyn Whittington extended the term to Jan. 7 — the longest extension allowable by state law. The investigation was always expected to go longer than the typical grand jury term.
Q: How often do the grand jurors meet?
A: Their normal schedule has been to meet once a week.
Q: Who is inside the grand jury room?
A: The jury, a prosecutor and a witness. Grand jury proceedings are closed to the public.
Q: What happens when the grand jury convenes?
A: Prosecutors present evidence and summon witnesses to testify. A grand jury is a powerful tool for investigating crimes because witnesses must testify unless they invoke the 5th Amendment of the U.S. Constitution, which protects against self-incrimination.
Typically, grand jurors hear a condensed version of the evidence that might be presented at a trial. In the Ferguson case, grand jurors are receiving more extensive evidence and testimony.
Q: Who has testified to the grand jury?
A: The only witnesses known for certain to have testified are Wilson and Dr. Michael Baden, who performed a private autopsy on Brown on behalf of his family. But other witnesses and experts may also have appeared.
Q: What charges could be filed?
A: At the lower end is second-degree involuntary manslaughter, which is defined as acting with criminal negligence to cause a death. It is punishable by up to four years in prison.
First-degree involuntary manslaughter, defined as recklessly causing a death, is punishable by up to seven years in prison. Voluntary manslaughter, defined as causing a death "under the influence of sudden passion arising from adequate cause," is punishable by five to 15 years in prison. Second-degree murder is defined as knowingly causing a death, or acting with the purpose of causing serious physical injury that ends up resulting in death. It is punishable by life in prison or a range of 10 to 30 years.
The most serious charge, first-degree murder, can be used only when someone knowingly causes a death after deliberation and is punishable by either life in prison or lethal injection.
Q: Do charges require a unanimous vote?
A: No. Consent from nine jurors is enough to file a charge in Missouri. The jury could also choose not to file any charges.
Q: Can jurors speak to the public?
A: No. Disclosing evidence, the name of a witness or an indictment can lead to a misdemeanor charge.
Q: What will be publicly disclosed when grand jurors reach a decision?
A: If Wilson is charged, the indictment will be made public, but the evidence will be kept secret for use at a trial. If Wilson is not indicted, McCulloch has said he will take the unusual step of releasing transcripts and audio recordings of the grand jury investigation.
Q: What preparations are being made?
A: Missouri Gov. Jay Nixon declared a state of emergency Monday and activated the National Guard. The governor said the Guard would assist state and local police as needed, in case there is civil unrest when the grand jury's decision is announced.
Schools expect advance notice of an announcement to help ensure students can get home before any major disruptions from protests. Police have undergone training pertaining to protesters' constitutional rights and have purchased more equipment, such as shields, helmets, smoke canisters and rubber bullets.