Being invited or taken for a police interview under caution in the UK can be an overwhelming experience, especially if you don’t understand your rights. Whether you are a suspect or just someone involved in an investigation, knowing what to expect and how to respond is crucial.
In this guide, we explain everything you need to know about police interviews under caution, your legal rights, and the role of a criminal defence solicitor in protecting you.
What Is a Police Interview Under Caution?
When the police conduct an interview under caution, they’re formally questioning someone believed to be involved in a criminal act. The caution serves as a legal warning that anything you say might later be presented in court.
You may be interviewed:
- After arrest
- Voluntarily at a police station
- As part of an ongoing investigation
If officers think you might be connected to a crime, they must formally caution you before any interview begins. Such interviews play a critical role in criminal investigations and often determine whether formal charges will follow.

What Does the Police Caution Mean?
The official caution given by UK police is:
“You do not have to say anything. What you choose not to say during the interview could negatively impact your case if you later bring it up in court. Everything you say during the interview may be documented and later presented in court.”
This means:
- You have the right to remain silent.
- Remaining silent might affect your defence if you later introduce information that wasn’t shared during the interview.
- Anything you say can be used in court.
Understanding this warning is essential. If you’re uncertain about how to respond, it’s safer to wait for legal guidance. Sincere answers may still be misunderstood or misused during an investigation.
When Can the Police Interview You Under Caution?
Officers can only carry out an interview under caution when:
- Suspect you have committed a criminal offence.
- Need to gather information related to a crime.
- Want to give you a chance to explain your actions or involvement.
Even if you’re not under arrest, you can still be invited to a voluntary interview under caution. However, your rights remain the same. These interviews are treated seriously, and what you say may impact future legal proceedings.
Your Rights During a Police Interview in the UK
During a police interview in the UK, you have several legal rights:
In some cases, vulnerable individuals such as minors or those with learning difficulties may have an appropriate adult present to ensure their understanding and protection.

Should You Answer Police Questions or Stay Silent?
What you choose to say—or not say—can have a major impact on your case. Speaking could help clear up misunderstandings, but it could also harm your defence if you say something wrong.
Your solicitor will guide you on whether to respond or remain quiet, depending on your case. They can assess the evidence against you and help you respond carefully. Your legal strategy will be customised by your solicitor to reflect the details of your case.
What Happens If You Refuse to Answer?
Staying silent is your choice, though it could affect how your case is viewed later.
- It may raise questions later if you introduce new information in court.
- The court may wonder why you didn’t explain your side at the time.
It’s often wiser to say nothing than to offer a response that might be taken out of context. A criminal defence solicitor can help you make the right call. Silence can be a smart legal strategy to protect yourself from making harmful statements.
Role of a Criminal Defence Solicitor During the Interview
Having a solicitor present safeguards your rights and helps you navigate the police questioning properly.
- They review the evidence against you.
- They prepare you for the types of questions police may ask.
- They make sure you’re treated fairly and legally.
Many people don’t realise that legal advice is free at the police station. You should never face an interview without legal support. Having a solicitor present not only safeguards your rights but also helps prevent misunderstandings and pressure from law enforcement.
What to Expect During the Interview Process
Here is what usually happens:
- You’ll be taken to a secure room.
- The interview is recorded (audio or video).
- A custody officer will ensure your rights are respected.
The police will ask questions in a structured way, often based on the evidence they have. You can pause the interview at any time to speak privately with your solicitor. Don’t feel rushed or pressured. It’s better to take time and answer carefully than to make statements you might regret later.
Voluntary Interview vs. Arrested Interview: What’s the Difference?
Voluntary Interview:
- You’re not under arrest.
- You can leave at any time.
- Still recorded under caution.
Arrested Interview:
- You are in custody.
- You cannot leave until released.
- Rights are formally explained.
Each process is handled seriously by law enforcement and can end in prosecution. Always take legal advice seriously. Even if you attend the interview voluntarily, it still carries serious legal weight and can influence the outcome of your case.
Can You Leave a Police Interview?
If you’re attending voluntarily, yes. You can leave unless you are arrested. After being taken into custody, you cannot leave until officers determine whether to file charges or release you.
Your solicitor can help you understand your status. It’s important not to assume your rights—ask and confirm everything during the process.
After the Interview: What Happens Next?
After your interview, the police may:
- Release you with no further action.
- Release you under investigation (RUI).
- Charge you and give a court date.
If you are charged, it is critical to work closely with your solicitor to prepare your defence. You may also be asked to provide fingerprints, DNA, or appear in court. Your lawyer will explain the next steps and how to respond appropriately.
Just because you’ve been released under investigation doesn’t mean you’re off the hook—the inquiry is ongoing. You can still be charged later, so ongoing legal support is important.

Final Tips: Stay Calm, Know Your Rights, and Get Legal Help
Facing a police interview in the UK can be stressful, but knowing your rights makes all the difference. Always:
- Stay calm and respectful.
- Don’t answer without legal advice.
- Ask for a solicitor immediately.
Having a legal expert by your side helps you avoid costly errors. No matter your situation, professional advice safeguards your rights and future.
Contact Westwing Solicitors for Immediate Representation
At Westwing Solicitors, we specialise in criminal law and police station representation. Whether you’re being interviewed under caution, released under investigation, or already charged, we’re here to help.
Our experienced criminal defence solicitors will:
- Advise you clearly before the interview.
- Be with you during questioning.
- Help you plan your next legal steps.
📞 Book a Free Consultation Today
We offer 24/7 legal representation at the police station under legal aid. Get in touch today to secure your rights and begin preparing a solid legal strategy. Don’t wait until it’s too late, speak to our expert team and ensure you’re fully supported through every stage of the process.