A court case is the structured legal process a court uses to resolve a dispute or decide whether someone broke the law, and understanding how a court case works means following it through its stages: filing, discovery, motions, trial, and, if someone appeals, review by a higher court. Each side presents evidence and arguments, and a judge or jury issues a binding decision. The rules shift depending on whether the case is civil or criminal, so that split is where any explanation has to start.
Civil or Criminal: The First Fork
Every court case is one or the other, and the differences shape everything that follows.
A civil case is a dispute between private parties. The plaintiff claims the defendant caused harm and asks the court for a remedy, usually money or an order requiring the defendant to do or stop doing something. Breach of contract, personal injury, landlord-tenant fights, and divorce all live here. The plaintiff wins by showing the claim is more likely true than not. Lawyers call this the preponderance of the evidence standard. It’s a tipping of the scales just past 50%.
A criminal case is brought by the government against someone accused of a crime, and the penalties can include jail, probation, or fines. Because freedom is at stake, the Sixth Amendment guarantees criminal defendants a speedy and public trial, the right to confront witnesses, and the right to an attorney, appointed free if they can’t afford one.1Library of Congress. U.S. Constitution – Sixth Amendment Civil litigants hire and pay for their own lawyers. The prosecution also has to meet a much higher bar: proof beyond a reasonable doubt. If a juror has a real, substantive doubt, they’re supposed to acquit.
Cases are heard in either federal or state court. Federal courts handle federal law, constitutional questions, and disputes between residents of different states; state courts handle most everything else.2United States Courts. Court Role and Structure
How a Case Starts
Civil Cases
A civil case begins when the plaintiff files a complaint laying out what happened, how the defendant caused harm, and what relief is being sought.3United States Courts. Civil Cases Filing in federal court currently costs $350.4Office of the Law Revision Counsel. 28 USC 1914 State fees vary.
The plaintiff then has to deliver the complaint and a summons to the defendant through a process called service. Federal rules allow hand-delivery, leaving the papers with a responsible adult at the defendant’s home, or delivery to an authorized agent. A plaintiff can also ask the defendant to voluntarily waive formal service in exchange for more time to respond. Whoever makes the delivery has to be at least 18 and can’t be a party to the case.5Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons
Once served, a defendant in federal court has 21 days to file a written answer admitting or denying each allegation. Waived service extends that to 60 days. Ignoring the complaint is dangerous: the court can enter a default judgment, meaning the plaintiff wins without the defendant putting up a fight.
Criminal Cases
Criminal cases usually begin with an arrest, a citation, or a formal investigation. The Fifth Amendment requires that felony charges go through a grand jury, which decides whether there’s enough evidence to indict.6Library of Congress. Fifth Amendment – Grand Jury Clause Doctrine and Practice A defendant can waive that process and let the prosecutor file a charging document called an information instead.7Justia Law. Federal Rules of Criminal Procedure Rule 7 – The Indictment and the Information Misdemeanors generally skip the grand jury.
At arraignment, the court confirms the defendant has the charges, reads them or explains them, and asks for a plea.8Legal Information Institute. Federal Rules of Criminal Procedure Rule 10 – Arraignment The choices are not guilty, guilty, or (with the court’s permission) nolo contendere, meaning “no contest.” Nolo has the same immediate effect as a guilty plea but usually can’t be used as an admission in a later civil lawsuit. Refuse to plead, and the court enters not guilty for you.9Legal Information Institute. Federal Rules of Criminal Procedure Rule 11 – Pleas
Discovery
In civil cases, both sides go through discovery, exchanging information to prevent ambushes at trial. Each party has to share witness identities, relevant documents, and damage calculations early, even before the other side asks.3United States Courts. Civil Cases Beyond those initial disclosures, the main tools are:
- Interrogatories, which are written questions the other side answers under oath. Federal courts cap each party at 25 unless the judge approves more.10Legal Information Institute. Federal Rules of Civil Procedure Rule 33 – Interrogatories to Parties
- Document requests, which are formal demands for records like contracts, emails, financial statements, and photos.
- Depositions, which are live, sworn interviews transcribed by a court reporter. They’re the most expensive discovery tool and often the most revealing, because an attorney can follow up in real time and watch how a witness handles pressure.
Criminal discovery works differently. The prosecution has a constitutional obligation under Brady to turn over evidence favorable to the defendant, but the full back-and-forth exchange of civil discovery doesn’t apply the same way.
Pre-Trial Motions and Settlement
While discovery runs, either side can file motions asking the judge to resolve issues before trial. The most consequential in civil cases is summary judgment, which argues the undisputed facts are so one-sided that trial would be pointless. The court grants it only when no reasonable jury could find for the opposing party on the evidence.11Legal Information Institute. Federal Rules of Civil Procedure Rule 56 – Summary Judgment It kills more cases than most people realize.
Other common motions ask the judge to exclude evidence, compel a reluctant party to respond to discovery, or dismiss for procedural defects. Throughout this phase, judges push settlement. Federal law requires every district court to maintain an alternative dispute resolution program for civil cases.12Office of the Law Revision Counsel. 28 USC 651 Most civil cases settle before trial, and a large share of criminal cases resolve by plea. Trial is the exception.
Mediation and Arbitration
Because trials are slow and expensive, courts and parties frequently use alternative dispute resolution. The two main forms differ in a way that matters.
In mediation, a neutral third party helps both sides negotiate. The mediator can’t impose an outcome; if the parties don’t agree, nothing happens. In arbitration, a neutral arbitrator or panel hears evidence and issues a decision. That decision can be binding or non-binding depending on what the parties agreed to. Binding arbitration effectively replaces a trial, and courts enforce the award much like a judgment.
Many employment and consumer contracts contain mandatory arbitration clauses that require disputes to go to arbitration instead of court. If you’ve signed one, you may not have the option of filing a traditional lawsuit. Read the dispute-resolution section carefully before signing anything.
The Trial
If a case doesn’t settle, it goes to trial. First comes selecting who will decide it. In a jury trial, potential jurors are questioned through voir dire to identify biases or conflicts.13U.S. District Court. The Voir Dire Examination Attorneys can challenge jurors for cause or use a limited number of peremptory challenges to remove jurors without stating a reason. In a bench trial, the judge alone decides both facts and law.
Then the trial follows a predictable sequence. Each side gives an opening statement outlining what the evidence will show. The party with the burden of proof goes first — plaintiff in civil cases, prosecution in criminal — calling witnesses and introducing exhibits, with the other side cross-examining. After the first side rests, the other presents its case. Both then give closing arguments.
Once one side has been fully heard, the opposing party can ask the judge for judgment as a matter of law, arguing that no reasonable jury could find against them on what’s been presented.14Legal Information Institute. Federal Rules of Civil Procedure Rule 50 – Judgment as a Matter of Law in a Jury Trial The judge views the evidence most favorably to the non-moving party, so these motions succeed only when the case is genuinely lopsided.
In a jury trial, the judge instructs the jury on the law before deliberations begin, and the jury returns a verdict. In a bench trial, the judge issues a ruling directly, often with written findings of fact and conclusions of law.
After the Verdict
Appeals
The losing party can challenge the outcome by filing a notice of appeal. In federal civil cases, that notice is due within 30 days of the judgment. Criminal defendants have 14 days.15Legal Information Institute. Federal Rules of Appellate Procedure Rule 4 – Appeal as of Right, When Taken Miss these deadlines and the right to appeal is usually gone.
An appeal isn’t a redo. The appellate court doesn’t hear witnesses or reweigh evidence. It reviews the trial record for legal errors, like applying the wrong standard, admitting evidence that should have been excluded, or giving the jury incorrect instructions.2United States Courts. Court Role and Structure If the court finds a significant error, it can reverse, modify, or send the case back for a new trial.
Collecting on a Judgment
Winning a civil case doesn’t automatically put money in your pocket. If the loser doesn’t pay voluntarily, the winner has to pursue enforcement. Common methods include wage garnishment and property liens that attach to the debtor’s real estate so the debt gets paid when the property sells. Unpaid federal judgments accrue interest based on the weekly average one-year Treasury yield at the time the judgment was entered.16Office of the Law Revision Counsel. 28 USC 1961 State courts set their own rates, some substantially higher.
Deadlines for Filing: Statutes of Limitations
Every type of legal claim has a filing deadline called a statute of limitations. Miss it and the court will almost certainly dismiss the case no matter how strong it is. Personal injury claims typically carry deadlines of two to four years. Written contract claims often run longer, sometimes up to six or ten years. Claims against government entities frequently have shorter deadlines and require an administrative claim first.
The discovery rule is one important exception. It delays the start of the clock until the injured person knew, or reasonably should have known, about the harm. It comes up most in medical malpractice and fraud, where damage may not surface for months or years. Even then, most states impose an outer limit beyond which no claim can be filed. If you think you might have a claim, checking the deadline is the first thing to do, not the last.
What Litigation Costs
Court cases are expensive, and the costs go well beyond attorney fees. Filing fees, deposition transcripts, expert witnesses, and copying add up fast. Under the American rule, each side generally pays its own attorney fees regardless of who wins. There are exceptions for certain claims (civil rights cases, or contract disputes where the agreement includes a fee-shifting clause), but the default means winning doesn’t reimburse what you spent getting there.
For smaller disputes, most states offer small claims courts with simplified procedures, lower filing fees, and no lawyer requirement. Maximums vary, typically falling between a few thousand dollars and $20,000. If the dispute fits within the limit, small claims court is usually faster, cheaper, and far less stressful than a full civil lawsuit.