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Understanding the criminal justice system

The criminal justice system can seem complex and confusing, especially if you are also trying to deal with the aftermath of being a victim of crime. We can bring clarity and help you to navigate the system when you need it most.

While you might hear the phrase “criminal justice system” referred to as one structure, it is in reality a group of organisations that work together to respond to crime, protect the public, and support victims.

These organisations include:

  • the police
  • courts
  • the Crown Prosecution Service (often referred to as the CPS)
  • support services

The priorities of the criminal justice system in the United Kingdom are to:

  • keep people safe
  • investigate what happened
  • support victims and witnesses
  • make fair decisions about any evidence captured
  • hold people, groups or organisations accountable if a crime has been committed

There are rights, protections and services in place to help people who have experienced crime (including victims, witnesses, and people who support them) to understand what is happening, and to feel safer during the process.

It is completely normal to feel confused or overwhelmed

Navigating the criminal justice system can be very complicated, especially if you are also dealing with the impact of crime or the impact of crime on someone you care about.

Everyone’s journey will look different, and not every case follows the same path. On this page, you can find more information about the most common things you might experience.

You do not need to be an expert. Understanding the basics can help you to feel more prepared and access the support available to you at every step.


What to expect

What to expect when going through the criminal justice system differs slightly depending on whether you are a victim (the crime happened to you) or a witness (you saw the crime happening).

You can find more about this on the Victims and Witness Information website, which is a government service.


Who is involved

The main roles you can expect to encounter while navigating the criminal justice system are:

  • police, who investigate and gather information
  • prosecutors, who decide if a case can go to court
  • courts, judges and juries, who hear evidence, ensure fairness, and make decisions.
  • support services, who help victims and witnesses throughout the process

What happens afterwards

After a criminal trial has concluded, you will be updated about the outcome and any protective measures that have been put in place.

Support does not end when the case ends. Regardless of the outcome, you will be able to access:

  • emotional support
  • help understanding the sentence
  • ongoing safety planning
  • updates if the offender is in prison through victim information schemes

You can also ask us as your Victim and Witness Support Service, the police, or the Witness Service to refer you to other services or networks.

You can also find out more about what happens after a case or trial has concluded on the Government’s Victim and Witness information website.

Your rights after a trial

If the offender was found guilty, you have the right to:

  • join the Victim Contact Scheme if they were sentenced to 12 months or more, for a violent or sexual offence
  • be told what sentence they received, including a short explanation of the sentence
  • be told about any appeal against their conviction or sentence
  • apply for compensation under the Criminal Injuries Compensation Scheme
  • be given information about restorative justice and how you can take part
  • be told how to challenge a parole decision if the Parole Board decides the offender is safe to release

You can read more about your rights as a victim or witness of crime in the Victims’ Code.


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