---
title: "Prosecution | Criminal Law"
description: "Prosecution is the state’s criminal case against a defendant, built to prove guilt beyond a reasonable doubt and seek punishment in Criminal Law."
canonical: "https://fiveable.me/criminal-law/key-terms/prosecution"
type: "key-term"
subject: "Criminal Law"
unit: "Unit 6"
---

# Prosecution | Criminal Law

## Definition

Prosecution is the criminal case brought by the state against a defendant. In Criminal Law, the prosecutor presents evidence and arguments to prove guilt beyond a reasonable doubt.

## What It Is

In Criminal Law, prosecution is the side of the case that brings criminal charges and tries to prove the defendant committed the offense. The prosecutor represents the government, not the victim, and asks the court to impose a criminal penalty if the evidence is strong enough.

A prosecution usually starts when police investigate a suspected crime and the prosecutor decides whether the facts support charges. That charging decision matters a lot, because prosecutors have discretion to file a case, decline it, or choose among different charges based on the evidence available. If the case goes forward, the prosecution has to present admissible evidence, question witnesses, and connect the facts to each legal element of the crime.

The proof standard is much higher than in civil cases. The prosecution must show guilt beyond a reasonable doubt, which means the judge or jury should have no real hesitation about the defendant’s guilt after hearing all the evidence. That is why criminal cases often focus on mens rea, actus reus, intent, and eyewitness or documentary proof. If the prosecution misses even one required element, the case can fail.

In bribery cases, prosecution often turns on intent and the quid pro quo. It is not enough to show that someone received something valuable. The prosecutor usually has to prove there was a corrupt agreement to influence an official act, which can come from messages, recorded calls, payment records, or cooperating witnesses.

A prosecution also has a public purpose. It seeks punishment, but it also signals that the law will be enforced, which is why criminal law treats prosecution as part of deterrence and public safety. That is different from a private dispute, where one person is usually seeking money or a remedy for themselves.

A common mistake is to use prosecution as if it means any legal action. In Criminal Law, it specifically means the government’s effort to prove a crime and secure a conviction, not just any lawsuit or complaint.

## Why It Matters

Prosecution is the part of Criminal Law that shows how a crime becomes a real case in court. If you are reading a casebook, this is the moment where the facts stop being suspicious behavior and start becoming a legal charge with elements that must be proven.

It also connects several core ideas in the course. The prosecution has to prove mens rea and actus reus, work within constitutional limits, and respond to defenses like entrapment or lack of intent. If you understand prosecution, you can trace why one set of facts leads to a conviction while another falls apart.

This term is especially useful in bribery because bribery cases often depend on subtle proof. You may need to look at who offered the benefit, what official act was expected, and whether there was a quid pro quo. That makes prosecution a good lens for reading fact patterns that involve government officials, business deals, gifts, or informal promises.

It also helps you see the difference between criminal and civil law. Criminal prosecution is about the state enforcing public norms, which is why the burden of proof is so high and why charging decisions matter so much. When you can spot the prosecution’s job in a scenario, you can usually tell what the legal issue is really testing.

## Connections

### [Burden of Proof](/criminal-law/key-terms/burden-of-proof)

Prosecution is where the burden of proof matters most. In a criminal case, the prosecutor has to prove each element beyond a reasonable doubt, which is a much tougher standard than the one used in civil cases. If you are reading a fact pattern, ask what the prosecution still has to prove and whether the evidence is enough for that standard.

### Indictment

An indictment is one way a prosecution can formally begin, especially when a grand jury is involved. It is the charging document that says there is enough evidence to accuse someone of a crime. In Criminal Law, this helps you separate the decision to charge from the later trial where the prosecution must actually prove the case.

### Defendant

The defendant is the person or entity the prosecution is brought against. In a bribery case, the defendant might be the public official, the businessperson, or both, depending on the statute and facts. When you see the word defendant, the next question is always what the prosecution must prove against that person specifically.

### [Quid Pro Quo](/criminal-law/key-terms/quid-pro-quo)

Quid pro quo is often the core fact the prosecution has to prove in bribery cases. It means something given in exchange for something else, usually a corrupt agreement to influence an official act. A prosecution can fail if the evidence shows a gift, favor, or political support but not a true corrupt exchange.

## On the AP Exam

A case-analysis question will usually ask you to identify whether the government has enough evidence to prosecute, or whether the prosecution can prove every element of the offense. Your job is to track the charge, then test the facts against the required proof. In a bribery fact pattern, that means spotting the thing of value, the official act, and the corrupt intent or quid pro quo.

You may also be asked to explain why the prosecution succeeds or fails under the reasonable doubt standard. If the problem gives you weak witness testimony, missing records, or an unclear exchange, you should say the prosecution may not meet its burden. When the facts show a charging decision, an indictment, or a plea bargain, connect those steps back to prosecutorial discretion and the strength of the evidence.

## Prosecution vs defense

Prosecution is the government’s side of the criminal case, while the defense represents the accused. The prosecution tries to prove guilt, and the defense tries to create doubt, raise a legal defense, or show the state has not met its burden. They are not just opposite arguments, they have different jobs in the criminal process.

## Key Takeaways

- Prosecution is the government’s criminal case against a defendant, not just any legal complaint.
- The prosecutor has to prove guilt beyond a reasonable doubt, which is the highest proof standard in ordinary law school criminal cases.
- Charging decisions matter because prosecutors can choose whether to file charges and what charges to bring.
- In bribery cases, prosecution often depends on proving corrupt intent and a quid pro quo, not just a gift or favor.
- If the prosecution cannot prove every required element, the case can fail even when the behavior seems suspicious.

## FAQs

### What is prosecution in Criminal Law?

Prosecution is the state’s effort to bring a criminal case against a defendant and prove guilt in court. The prosecutor represents the government, presents evidence, and asks for a conviction if the facts support the charge. In Criminal Law, it is the side that must carry the burden of proof.

### Is prosecution the same as defense?

No. The prosecution works for the government and tries to prove the crime, while the defense represents the accused and tries to block that result. They have opposite jobs, but both shape how the judge or jury reads the facts.

### How does prosecution work in a bribery case?

In a bribery case, the prosecution usually has to prove that something valuable was offered or given with corrupt intent. It also has to show a quid pro quo, meaning an exchange for an official act or influence. That is why emails, payment records, witness testimony, and recorded conversations can matter so much.

### What does the prosecution have to prove?

The prosecution has to prove every element of the offense beyond a reasonable doubt. In a bribery case, that may include the thing of value, intent, and the official act connected to the exchange. If one element is missing, the case can fall apart even if the conduct looks unethical.

## Related Study Guides

- [6.6 Bribery](/criminal-law/unit-6/bribery/study-guide/FYHegRDJ8n4c8Iux)

## About This Document

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