If prosecutors file charges in the United States, it means a government attorney has formally accused a person of committing a crime based on evidence reviewed from an investigation. Filing charges begins the formal criminal court process.
Once charges are filed, the case moves from investigation to prosecution within the court system.
What happens
When prosecutors decide to file charges, they submit formal documents to the court describing the alleged offense after prosecutors review police reports and supporting evidence.
This process usually includes:
- Preparing a criminal complaint or charging document.
- Filing the case with the court.
- Notifying the defendant through a summons or arrest process.
After charges are filed, the defendant is typically required to appear in court.
The case then moves into early court proceedings such as what happens during arraignment and scheduling of future hearings.
What determines whether charges are filed
Prosecutors decide whether to file charges based on several factors:
- The evidence gathered during the investigation.
- Whether the evidence meets legal standards for prosecution.
- The seriousness of the alleged offense.
- Applicable state or federal law.
Prosecutors may decline to file charges if the available evidence is insufficient, which is covered in situations where prosecutors decline charges after reviewing a case.
In some situations, investigators may be asked to gather additional evidence before a final decision is made.
What it may lead to
Common outcome:
- Criminal charges formally filed in court.
- Court hearings scheduled.
Possible escalation:
- Arrest warrant issued.
- Defendant required to appear in court under a summons.
Worst realistic outcome:
- Case proceeds through the criminal justice system toward trial.
Once charges are filed, the court manages the legal process.
Common escalation triggers
Charges are more likely to be filed when:
- Evidence strongly supports the alleged offense.
- Witness statements corroborate investigative findings.
- Physical or digital evidence connects individuals to the incident.
- Investigators recommend prosecution.
These factors influence prosecutorial decisions.
What this depends on
Charging decisions depend on:
- Prosecutorial guidelines in the jurisdiction.
- The nature of the alleged crime.
- Available evidence.
- Legal standards required to pursue prosecution.
Different prosecutor offices may apply different internal review procedures.
Who controls the process
Prosecutors are government attorneys responsible for filing criminal charges on behalf of the state or federal government.
Courts oversee the case once charges are filed, and judges manage the legal proceedings that follow.
Last reviewed: March 2026
This page describes typical operational outcomes. Individual cases vary.