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Prosecutor

A prosecutor is the government lawyer who files and presents criminal charges against a defendant. In Criminal Law, the prosecutor decides whether the evidence supports a case and handles the case from charging through trial or plea negotiations.

Last updated July 2026

What is the Prosecutor?

A prosecutor is the lawyer who represents the government in a criminal case. Their job is not to “win at any cost,” but to decide whether the facts and evidence are strong enough to support criminal charges and then prove the case in court.

In Criminal Law, the prosecutor is usually the person who reviews police reports, witness statements, physical evidence, and legal issues after an arrest. If the evidence does not support a charge, the prosecutor can decline to file one, reduce the charge, or pursue a different count. That charging discretion is a big reason prosecutors shape what cases actually move forward.

Once charges are filed, the prosecutor handles much of the pretrial process. They appear at the arraignment, respond to bail questions, share required discovery, and negotiate plea bargains. They also work with law enforcement, but they are not supposed to act like a second police officer. Their ethical duty is to seek a just outcome, which includes disclosing exculpatory evidence that could help the defendant.

A prosecutor’s power can vary by jurisdiction. Some offices have larger staffs, more resources, and broader discretion than others, which can affect how quickly cases move and what kind of plea offers are made. That is why the same offense can look different from one county or state to another.

A simple way to think about the role is this: the defense attorney pushes back for the accused, while the prosecutor tries to show the state can meet its burden of proof. The prosecutor is the one who turns an investigation into a formal criminal case.

Why the Prosecutor matters in Criminal Law

The prosecutor sits at the center of the criminal process, especially in the pretrial stage. If you are tracing how a case moves from arrest to courtroom, the prosecutor is the person who decides whether there is enough evidence to charge, what charge to file, and whether a plea offer makes sense.

This term also connects directly to fairness in criminal law. Prosecutors have access to the state’s investigative power, so the system depends on them to screen weak cases, disclose helpful evidence to the defense, and avoid overcharging. When a professor asks about due process or ethical limits, the prosecutor is often part of the answer.

You will also see this term in case analysis. If a fact pattern mentions police sending a file to the district attorney, an indictment being sought, or plea talks happening before trial, you are looking at prosecutor activity. Knowing the role helps you separate charging decisions from defense strategy and from the judge’s role in the case.

Keep studying Criminal Law Unit 9

How the Prosecutor connects across the course

Defendant

The prosecutor and defendant are the two main sides in a criminal case. The prosecutor speaks for the state, while the defendant is the person accused of the crime. When you read a case scenario, identifying each side helps you figure out who has the burden of proof and who is responding to the charge.

Burden of Proof

The prosecutor is the party trying to meet the burden of proof. In criminal law, that usually means proving the defendant’s guilt beyond a reasonable doubt. If the facts do not get that high, the prosecutor may still push for a plea deal, but the case may be too weak to win at trial.

Plea Bargain

Prosecutors often control whether a plea bargain is offered and what it includes. That can mean reducing charges, recommending a lighter sentence, or agreeing to dismiss some counts. In practice, a lot of criminal cases end here instead of reaching a full trial.

Indictment

A prosecutor may ask a grand jury for an indictment when formal charging is needed. The indictment is the charging document that says there is probable cause to move forward. This connection shows how prosecutors work with pretrial procedure before the case ever reaches trial.

Is the Prosecutor on the Criminal Law exam?

A quiz or case-analysis question may give you a short criminal procedure fact pattern and ask who made the charging decision, who offered the plea, or who has to disclose evidence. The move is to identify the prosecutor as the government’s lawyer and then connect that role to the stage of the process shown in the prompt.

If the question mentions indictment, arraignment, or plea bargaining, ask what the prosecutor can do at that point. You might also be asked to compare the prosecutor’s job with the defense attorney’s job or to explain why a charge was filed, dismissed, or reduced based on the evidence. On written assignments, use the term to name the actor and then explain the legal effect of that actor’s choice.

The Prosecutor vs Defense Attorney

A prosecutor represents the government and tries to prove the criminal charge, while a defense attorney represents the accused and tries to challenge the state’s case. They are opposing roles, but both are bound by legal and ethical rules. If a fact pattern asks who is negotiating a plea or who has to disclose evidence, the prosecutor is usually the government side.

Key things to remember about the Prosecutor

  • A prosecutor is the government lawyer in a criminal case, not the judge and not the defense.

  • The prosecutor decides whether to file charges, what charges to pursue, and whether a plea bargain makes sense.

  • In Criminal Law, the prosecutor’s work shows up most during pretrial proceedings like arraignment, indictment, discovery, and plea negotiations.

  • Prosecutors have ethical duties too, including disclosing exculpatory evidence that can help the defendant.

  • When you see a criminal case fact pattern, look for the prosecutor as the person turning an investigation into a formal charge.

Frequently asked questions about the Prosecutor

What is a prosecutor in Criminal Law?

A prosecutor is the government lawyer who brings criminal charges against a person or entity accused of breaking the law. In Criminal Law, this person reviews the evidence, decides whether to charge, and presents the case for the state. They also handle pretrial steps like plea offers and disclosure.

What does a prosecutor do before trial?

Before trial, a prosecutor reviews the evidence, files or rejects charges, appears at arraignment, and often negotiates a plea bargain. They also work through discovery and may ask for an indictment if the case goes through a grand jury. A lot of criminal cases are shaped or ended in this stage.

How is a prosecutor different from a defense attorney?

The prosecutor represents the government and tries to prove the criminal charge. The defense attorney represents the accused and challenges the prosecution’s case. They may both negotiate a plea bargain, but they do so from opposite sides of the case.

Can a prosecutor drop charges?

Yes. If the evidence is weak, a witness is unavailable, or the case no longer makes sense to pursue, a prosecutor may dismiss or reduce charges. That discretion is one reason prosecutors have so much influence over what cases actually go to court.