Radical Edward wrote:Thank you.
I have a few other questions: 1) What is a "grand jury"? By this I mean, does this jury have something specific? Are its members professionals of law, or "normal" citizens as in a trial jury? How are they chosen? What is its power?
2) I've read that the evidences are examined by the grand jury (I think). Does it mean that both the defense and the prosecution have access to all the evidences before the trial? Can they both investigate on them? Can they add evidences during the trial itself? Can they hide evidence?
3) Same thing for witnesses. Is there a pre-established list of witnesses?
4) You said that the attorneys could call back witnesses who have already testified, but can they call back all the witnesses, or only "their" witnesses?
In addition to what I wrote earlier --
1) A grand jury is composed of regular citizens, like you or me. Those people don't need to have any sort of specialized training, and often it's preferred if they don't. I'm not 100% familiar with how they are chosen, and I suspect that differs by state. As I wrote earlier, they act as a balance on whenever the prosecutor wants to hand down an indictment. An indictment is one of the earliest pieces of a criminal matter -- it's essentially that state (or federal jurisdiction) telling the accused that it thinks it's got a good case and is going to court. It's not the absolute first thing that happens in a criminal matter, though, because for one thing the accused has to be arrested. The order of some of the proceedings can vary, but other things are more fixed.
As for regular juries, in most states they are selected by the attorneys in the case. This is done by a process called "voir dire". A big jury pool is called in on any particular day and usually there are some general questions asked in order to weed out some people from the top, such as people who are the only ones at their place of business or are severely disabled. Then the pool (usually) goes into a courtroom and there can be questions from a judge or the attorneys or both. In some states only the judge gets to ask the questions. The idea behind it is to make sure that no one glaringly bad is selected for the jury, such as if Bill Cosby were the accused, there shouldn't be any people who are prejudiced against African-Americans. Sometimes those people slip into juries, though, so the system isn't perfect. The lawyers, of course, are looking for the best mix of people to support their side, either people who are sympathetic to the defense or who might have problems with government and its laws or whatever. There are about as many theories about jury selection as there are trial attorneys.
In civil matters, the jury decides whether the defense is liable and, if they are, what the penalty will be. This can be monetary damages, specific performance (such as requiring someone to adhere to a contract, etc.). In criminal matters, juries decide guilt or innocence but the penalty phase is governed by other things. E. g. if someone is convicted of jaywalking, they won't get the death penalty no matter what a jury says or does. That's just not an allowed penalty for jaywalking no matter where you are.
2) Evidence and proof are different things although colloquially we often use the words interchangeably. Proof is essentially what shows that something has been done (or not done), but evidence is proof (and its supports) that has been admitted. The reason for the distinction is that courts have several ways of attempting to ascertain whether presented proof is reliable. A lot of these rules have been around for hundreds of years because these kinds of things get hashed out all the time. For example, if it's an item that's being presented for admission as evidence, one question is often what the chain of custody was. If you present an item where it's not always known where that item was or what may have happened to it, that raises questions of tampering.
Grand juries look at all sorts of things but nothing's been admitted yet because it's before the trial phase (Tico, is this statement true?). Regular old juries look at evidence and yes, both sides get to see it. In fact, if evidence is withheld from one side or another it can cause what's called a mistrial, where the results are thrown out. In modern practice, what this
usually means is that papers are copied or are made available on disk or through a server, other items (such as xrays) might also be copied (if that's possible), still other items (such as a damaged automobile) are made available for both sides to take photographs and engage in scientific testing and testimony is generated only when all parties are present so that everyone gets a chance to speak with the witness and ask questions.
Hiding evidence or tampering with it, if egregious, can not only throw out a court case. Those acts, in and of themselves, can be considered criminal in nature. Then the tamperer can end up on trial, too (although in a separate proceeding). Lawyers who hide evidence or tamper with it can eventually end up being disbarred (losing their hard-earned license to practice law).
3) Both sides have to share the names of witnesses they intend to call, and in civil matters (I can't recall if this happens in criminal matters, but I bet something similar does) witnesses are usually made available for what's called a deposition. This is where both sides' lawyers, a stenographer and the witness all sit together and the lawyers ask the witness questions. The stenographer (and sometimes also a videographer these days) is there to record the information. I've taken literally a few hundred of these and I've asked questions on everything from a person's driving record to the medical care they've received to how construction was proceeding. I used to handle auto accidents, trips and falls, product liability and lots and lots of construction claims. Depositions are helpful as it clarifies whether the case is strong. The questions about injuries and medical care can help both parties make decisions on settlement and avoid a trial. And, sometimes witnesses die before trial. The deposition, because it is a sworn proceeding where the penalties of perjury would attach if the witness lies, is admissable in place of the witness. But that's only if the witness is dead or otherwise unavailable. Almost always, it's preferred to have the witness come to the trial and testify. And then the deposition can be used to check the witness's story, and memory.
As for last-minute, surprise witnesses, they are generally merely the stuff of movies. Again, both sides have to share information in advance. It's not impossible but it should be rare. Any attorney who constantly springs surprise witnesses on his/her opponents is not going to be beloved by judges for very long.
4) Attorneys can call back any witness who has testified, including those not under their purview ("hostile" witnesses). But reexamination is strictly limited. Essentially, you get your chance and should ask the questions then. The idea is to not have attorneys calling back witnesses over and over again, hoping for more favorable answers to their inquiries. Trials have to come to an end some time, and criminal trials are an exercise in spending tax dollars. Any lawyer who keeps calling back witnesses will not be able to do so for long.
I hope this helps!