05 Courts and Criminal Case Processing

How a criminal case proceeds

Criminal cases commonly move through decisions about whether charges will proceed, whether the defendant will remain in custody before trial, and whether the case will end in a plea or trial. Not every case includes every hearing, and steps may occur in a different order or at the same hearing.

Procedures differ between federal and state courts, and state rules vary. The stages described here are common steps, with federal practice as a reference point; exact procedures depend on the jurisdiction.

Arrest and formal charges

An arrest generally requires probable cause, a legally sufficient basis to believe a person committed an offense. An arrest is not proof of guilt.

After reviewing evidence gathered by law enforcement, a prosecutor decides whether to pursue charges and, if so, what charges to bring. A case may begin with a complaint, followed by an indictment issued by a grand jury or an information filed by a prosecutor, depending on the offense and jurisdiction. These documents state allegations; they do not establish that the accused committed a crime. In federal felony cases, an indictment is generally required unless the defendant waives that right.

For example, after an arrest for an alleged store robbery, a prosecutor may review witness accounts, surveillance footage, and other evidence before deciding whether to file a robbery charge, a different charge, or no charge. A filed charge can change as the case develops, subject to applicable legal procedures.

First appearance and pretrial release

At an initial appearance, a judge or magistrate judge informs the defendant of the charges and rights, addresses access to counsel, and considers whether the person should be released or detained while the case is pending. A separate detention hearing may examine risks such as failure to appear or danger to others or the community.

“Bail” is often used as a general term for pretrial release, but release does not always require paying money. A court may release someone on a promise to return, impose conditions such as supervision or limits on travel or contact, require a financial bond, or order detention when the law permits. In federal cases, the court considers whether conditions can reasonably ensure the defendant’s appearance and community safety. Rules and practices differ among jurisdictions.

Pretrial release is not a finding of innocence, and detention is not a finding of guilt. Both concern the period before the case is resolved.

Arraignment and pretrial preparation

At arraignment, the court formally presents the charges and asks the defendant to enter a plea, commonly guilty or not guilty. In some courts, arraignment and the initial appearance are combined; elsewhere, they occur separately.

If the defendant pleads not guilty, the parties prepare the case. The prosecution must disclose information required by law, and both sides may investigate and file pretrial motions. These motions can ask the judge to exclude evidence, decide a legal question, or dismiss a charge.

In some cases, a preliminary hearing examines whether there is sufficient evidence—typically probable cause—to proceed. It is not a trial on guilt. The hearing may be unnecessary if an indictment has already been returned or the hearing is waived.

Plea agreements

Many criminal cases end without a trial through plea bargaining, in which the prosecution and defense negotiate a proposed resolution. An agreement may involve a plea to fewer or different charges, or a recommendation about the sentence. A defendant may reject an offer and proceed to trial.

A guilty plea gives up the trial process and must be made knowingly and voluntarily under applicable rules. The judge checks the plea’s validity and, depending on the agreement and jurisdiction, may accept or reject it. The judge—not the prosecutor—imposes the sentence.

Plea agreements can resolve cases more quickly and reduce the uncertainty and burden of trial. They also mean that many cases are decided without a public trial, making the defendant’s informed choice and the court’s review important safeguards.

Trial and possible outcomes

At trial, the prosecution must prove every element of the charged offense beyond a reasonable doubt. The defendant is presumed innocent and is not required to prove innocence.

In a jury trial, jurors assess the evidence and decide whether the prosecution has met its burden. In a bench trial, the judge decides the facts as well as legal questions. A typical jury trial includes:

• Jury selection and opening statements.

• Prosecution evidence and witnesses, with cross-examination by the defense.

• Any defense evidence and closing arguments.

• Instructions from the judge and jury deliberation.

The defendant has constitutional protections that include the right to counsel, the right to confront adverse witnesses, and—when applicable—the right to a jury trial. A not-guilty verdict means the prosecution did not prove guilt beyond a reasonable doubt. A guilty verdict may lead to sentencing and, where permitted, post-trial motions or an appeal.

Roles in the courtroom

Each courtroom participant has a distinct role in the process:

• Judge: Oversees a fair and lawful process, rules on legal issues and the admissibility of evidence, explains the law to the jury, and manages hearings. After a conviction or guilty plea, the judge imposes a sentence within the law.

• Prosecutor: Represents the government, evaluates evidence, decides whether and what charges to pursue, presents the government’s case, negotiates possible pleas, and makes sentencing recommendations where appropriate. The prosecutor’s role is to seek justice, not simply to win convictions.

• Defense counsel: Advises and represents the defendant, investigates the case, tests the prosecution’s evidence, raises legal challenges, negotiates when appropriate, and protects the defendant’s rights. A defendant who cannot afford counsel may qualify for court-appointed representation in serious criminal proceedings.

• Jury, when used: Evaluates the evidence under the judge’s instructions and decides whether the prosecution has proved guilt beyond a reasonable doubt.