What is a mock trial, and how do you prepare for one?

What is a mock trial?

A mock trial is a practice trial on a set of facts, with people playing every role. The American Bar Association's guide Putting on Mock Trials sorts them into two kinds: scripted trials, which read like a play, with individuals assigned to read specific parts, and role-play trials, where students get a set of facts, a statement of the law and witness statements, and must develop their own case theory, opening statements, questions and closing arguments.

• In high school. The New York State High School Mock Trial Program, a joint venture of The New York Bar Foundation, the New York State Bar Association and the Law, Youth and Citizenship Program, is open to 9th-12th graders; over 300 teams compete, and the case alternates each year between civil and criminal. Thousands of students take part each year.NYSBA
• In college. The American Mock Trial Association serves as the governing body for intercollegiate mock trial competition. It was founded in 1985, and about 700 teams from over 400 universities and colleges compete.AMTA
• In real courthouses. Federal courts host them: the Eastern District of Washington runs a 90-minute simulation of a criminal case in which students act as attorneys, jurors and witnesses, then talk with a federal judge; the Judiciary Learning Center's visits include a mock trial segment where students play attorneys, jurors and judge.E.D. Wash. · uscourts.gov, December 18, 2025
• For lawyers and their clients. The ABA's litigation section writes that a mock trial lets attorneys overcome nerves, think on their feet and refresh the rules of evidence before a supportive audience, and that mock jurors' feedback catches habits a speaker doesn't notice.ABA, The Many Benefits of Mock Trial (2017)

Mock trial vs. moot court

The two are often confused. A mock trial copies a trial, where the facts are proved with witnesses and exhibits. Moot court copies an appeal, where lawyers argue about the law to a panel of judges. The federal courts make the same point about their Supreme Court Simulation: “this is a simulation of oral arguments in the Supreme Court and not a trial. No evidence is collected and no witnesses are called.”

Sources: the ABA guide Putting on Mock Trials (moot court activities) and the U.S. Courts Supreme Court Simulation. The federal courts also run Civil Discourse and Difficult Decisions hearings, in which students argue and deliberate in a real courthouse, and they describe them as “not mock trials”.

The roles in a mock trial

• Attorneys. They control the presentation of evidence and argue their side. They do not supply the facts themselves; they introduce evidence and question witnesses to bring out the full story. In the New York tournament, the attorney who makes the opening statement may not make the closing statement.ABA, Putting on Mock Trials · NYSBA 2026 materials
• Witnesses. They supply the facts, and may testify only to facts stated in or reasonably implied from their witness statement. Asked something the materials don't cover, a witness must reply, “I don't know” or “I can't remember.”ABA, Putting on Mock Trials
• The judge. Rules on objections and keeps order. The rules of evidence ask the court to exercise reasonable control over the mode and order of examining witnesses.Fed. R. Evid. 611(a)
• Jurors. Listen to the evidence, then retire to deliberate and reach a verdict.S.D.N.Y.: The eight stages of trial
• Clerk and bailiff. In an actual trial, the court clerk keeps track of the court records, and the bailiff provides the security of the courtroom and escorts witnesses and juries.ABA, Putting on Mock Trials

How a mock trial runs: the order of a trial

Mock trials follow the order of a real one. The federal court in Manhattan lists eight stages of a civil trial once the jury has been sworn:

1. 1Opening statements. The plaintiff or prosecution first, then the defense. An opening statement is not evidence; it is an outline of what that party expects the evidence will show.
2. 2The plaintiff's case. The plaintiff calls witnesses and offers evidence. Each witness is questioned on direct examination, then cross-examined by the other side, then on redirect if the judge allows.
3. 3The defendant's case. The defendant may call witnesses and offer evidence, with the same direct and cross-examination.
4. 4Rebuttal. The plaintiff may call rebuttal witnesses to answer what the defense witnesses said.
5. 5Closing arguments. The lawyer on each side argues what the evidence shows.
6. 6Instructions on the law. The judge instructs the jury on the law. Some courts do this before the closing arguments.
7. 7Deliberation. The jury retires to deliberate.
8. 8Verdict. The jury reaches its verdict.

Mock trial objections and the Federal Rules of Evidence

How to object. Under Rule 103(a)(1), a party preserves an objection only if it timely objects and states the specific ground, unless it was apparent from the context. The New York tournament rules put it plainly: stand, say “objection”, then very briefly state the basis, for example “leading question”, and don't explain unless the judge asks. Witnesses stop talking immediately when an objection is made. If the judge sustains an objection, the judge is ruling that you can't talk about whatever was objected to.

• Relevance. Evidence is relevant if it has any tendency to make a fact of consequence more or less probable. Irrelevant evidence is not admissible.Fed. R. Evid. 401, 402
• Unfair prejudice, confusion or waste of time. The court may exclude relevant evidence if its probative value is substantially outweighed by a danger of unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence.Fed. R. Evid. 403
• Hearsay. A statement the speaker did not make while testifying at the trial, offered to prove the truth of what it says, is hearsay and is not admissible unless a rule allows it. Rule 801 defines it and Rule 802 bars it. An opposing party's own statement is not hearsay (Rule 801(d)(2)).Fed. R. Evid. 801(c), 802
• Hearsay exceptions. Among others: a present sense impression, made while or immediately after the speaker perceived the event (803(1)); an excited utterance, made under the stress of a startling event (803(2)); a statement of the speaker's then-existing condition (803(3)); a statement for medical diagnosis or treatment (803(4)); and business records (803(6)).Fed. R. Evid. 803
• Leading question. A question that suggests its own answer should not be used on direct examination, except as necessary to develop the testimony. Leading questions are ordinarily allowed on cross-examination, and when a party calls a hostile witness.Fed. R. Evid. 611(c)
• Beyond the scope. Cross-examination should not go beyond the subject matter of the direct examination and matters affecting the witness's credibility.Fed. R. Evid. 611(b)
• Speculation, or no personal knowledge. A witness may testify to a matter only if there is evidence the witness has personal knowledge of it.Fed. R. Evid. 602
• Improper opinion. A witness who is not an expert may give only an opinion rationally based on what the witness perceived, helpful to the testimony, and not based on specialized knowledge.Fed. R. Evid. 701
• Character evidence. Evidence of a person's character or character trait is not admissible to prove that on a particular occasion the person acted in accordance with it.Fed. R. Evid. 404(a)(1)
• No foundation for an exhibit. Before an exhibit comes in, its proponent must produce evidence sufficient to support a finding that the item is what the proponent claims it is, often through a witness with knowledge.Fed. R. Evid. 901(a)
• Original writing. An original writing, recording or photograph is required to prove its content, unless the rules or a federal statute provide otherwise.Fed. R. Evid. 1002
• Harassing the witness. The court should control questioning so as to avoid wasting time and to protect witnesses from harassment or undue embarrassment.Fed. R. Evid. 611(a)

Direct examination and cross-examination

A judge's explanation for people without lawyers in the Northern District of Indiana sums it up: if you call a witness, you must ask questions for the witness to answer; you can't tell the witness (or the jury) facts while the witness is testifying. That is direct examination. The other side then asks questions on cross-examination, and the judge might let you ask more on redirect, but only about something discussed on cross.

• Start with how the witness knows. California's courts suggest first asking questions that explain how the witness has first-hand knowledge of what the witness will be testifying about.
• No leading on direct. Unlike cross-examination, you are not allowed to ask leading questions on direct (Rule 611(c)).
• Finish cleanly. When you are done, California's courts suggest saying, “I have no further questions for this witness.”
• Answering an objection. If the judge asks, respond to the objection, or say that you will rephrase the question, then ask the new question.
• Refreshing memory and prior statements. A writing can be used to refresh a witness's memory (Rule 612). Before a witness's prior inconsistent statement comes in, the witness is given an opportunity to explain or deny it (Rule 613(b)).

How to write an opening statement

An opening statement tells the judge or jury what the case is about and what the evidence will show. California's courts call it “a preview of the evidence you plan to present”, and add: “You can't make arguments in your opening statement.” The Indiana judge's explanation says the same: “You can't argue what the jury should do. The time to do that is in final argument.” And it is not evidence.

• What to put in. The ABA guide lists the name of the case, your name, your client's name and the opponent's name; the story of the facts that led to the case; a summary of the key facts each witness will bring out and of the important documents; and what you will ask for.ABA, Putting on Mock Trials
• What to leave out. Argument. The guide warns that it violates the function of the opening statement and risks a rebuke from the bench. Generally, attorneys are not allowed to object to opening statements or closing arguments.ABA, Putting on Mock Trials
• For the defense. The defense opening denies that the plaintiff or prosecution has a valid case and, in a general way, outlines the facts from the defendant's standpoint.ABA, Putting on Mock Trials

How to write a closing argument

The closing is where you argue. In the Indiana judge's words: “In final argument, you can comment on any evidence that was presented at trial, and can tell the jury what you think that evidence means. You can't tell the jury any new facts about the case during final argument -- the evidence is over by this point.” You can also tell the jury what you are asking them to do.

• Build it from the trial. The ABA guide: summarize the highlights of the testimony and documents as they support your case and undermine your opponent's, using actual examples you wrote down, tie the facts to the law, and ask for the decision you want. The New York tournament rules add that closing arguments must be based on the evidence presented during the trial.ABA, Putting on Mock Trials · NYSBA 2026 materials
• Who speaks when. California's courts: the plaintiff goes first, then the defendant, then the plaintiff can make a brief rebuttal. The Indiana explanation: the side that has to convince the jury opens the final arguments and closes them.California Courts · N.D. Ind.

Mock trial scripts, case materials and classroom use

A scripted mock trial needs little preparation and suits a first lesson; a role-play trial asks students to build their own case from a fact pattern. Competition case packets are written each year by the organizers and are protected: the New York program's fact patterns are copyrighted by the Law, Youth and Citizenship Program. This page doesn't reproduce any case packet; use your program's own materials.

• The federal courts publish free courtroom activities for teachers on uscourts.gov educational resources, including the Supreme Court Simulation, suggested for about 40 minutes.
• Many federal district courts invite classes in for a mock trial, such as the Western District of Arkansas.
• For your own case, the builder below drafts an opening or a closing from your facts, in the structure the ABA guide and court self-help pages describe.

Preparing for your own hearing or trial

If you represent yourself, you do every lawyer's job. The Ninth Circuit's model jury instruction for a self-represented party says such a party may make an opening statement and closing argument, ask questions of witnesses, make objections, and argue legal issues to the court, and that the party's words in those parts of the trial are not evidence. The only evidence comes from witnesses who testify under oath and from exhibits that are admitted.

• The judge can't be your lawyer. The Indiana explanation: the judge won't advise you how to proceed or what questions to ask witnesses.
• Exhibits must be offered. Papers filed before trial aren't evidence; to have the jury consider one, list it as an exhibit and offer it at trial, often through a witness who can say what it is.
• Short cases may skip openings. California's courts note that for a short case without a jury, the judge may ask whether the sides want to skip opening statements.
• Small claims is simpler. See small claims court for how a small claims hearing runs, and find legal help for free advice.

Run a mock trial with the AI judge

Justice's practice room puts you in a courtroom with an AI judge. Give your opening statement, argue your side, answer the judge's questions and the other side's objections, and close, then hear what to tighten. It takes a few minutes. It is practice: it does not predict how a real court will decide, and it is not legal advice.

Common questions about mock trials

Official sources

1. Federal Rules of Evidence, as amended to December 1, 2025 (PDF) uscourts.gov
2. U.S. Courts: Federal Rules of Evidence uscourts.gov
3. U.S. District Court, Western District of Arkansas: Student mock trial events arwd.uscourts.gov
4. U.S. District Court, Eastern District of Washington: Civics education, mock trials waed.uscourts.gov
5. U.S. Courts: Judiciary Learning Center bridges gap between science and law (December 18, 2025) uscourts.gov
6. U.S. Courts: Educational resources uscourts.gov
7. U.S. Courts: Supreme Court Simulation uscourts.gov
8. U.S. Courts: Civil Discourse and Difficult Decisions uscourts.gov
9. U.S. District Court, Southern District of New York: The eight stages of trial nysd.uscourts.gov
10. Ninth Circuit Manual of Model Civil Jury Instructions 1.21: Outline of trial ce9.uscourts.gov
11. Ninth Circuit Manual of Model Civil Jury Instructions 1.22: Self-represented party ce9.uscourts.gov
12. U.S. District Court, Northern District of Indiana: Trial explanation for pro se plaintiff (PDF) innd.uscourts.gov
13. California Courts Self-Help Guide: Civil trials selfhelp.courts.ca.gov
14. California Courts Self-Help Guide: Present your case selfhelp.courts.ca.gov
15. American Bar Association, Putting on Mock Trials (2002), hosted by the Superior Court of California, County of Santa Clara (PDF) santaclara.courts.ca.gov
16. American Bar Association, Section of Litigation: The Many Benefits of Mock Trial (February 21, 2017) americanbar.org
17. New York State Bar Association: New York State High School Mock Trial Program nysba.org
18. NYSBA: 2026 New York State High School Mock Trial Tournament Materials, Revision 1 (PDF) nysba.org

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