When you are arrested in England and Wales, you have a number of clearly defined legal rights that the police are required to respect from the moment of arrest. These include the right to be told why you are being arrested, the right to free and independent legal advice, the right to have someone informed of your detention, and the right to be treated in accordance with the Police and Criminal Evidence Act 1984 (PACE) and its Codes of Practice throughout your time in custody. Knowing these rights in advance, and understanding when they have been breached, matters enormously.
Under section 28 of PACE, an arrest is only lawful if you are told that you are under arrest and given the grounds for it, either at the time of arrest or as soon as practicable afterwards. This applies even if the reason seems obvious to the officer making the arrest. Failing to provide this information can make the arrest unlawful.
You must also be cautioned. The standard caution used in England and Wales is:
“You do not have to say anything. But it may harm your defence if you do not mention when questioned something which you later rely on in court. Anything you do say may be given in evidence.”
This caution must be given at the time of arrest and again before any formal interview begins. If you are not cautioned before being questioned in a way that is designed to obtain evidence, anything said in response may be challengeable.
Under section 24 of PACE, a constable may arrest a person without a warrant where they have reasonable grounds to suspect that the person has committed, is committing, or is about to commit an offence, and where they have reasonable grounds to believe that the arrest is necessary. Both elements must be present.
The necessity test under section 24 PACE requires the officer to identify one of several specific reasons why arrest is needed, for example to allow a prompt and effective investigation, to prevent the person suffering or causing injury, or to prevent the disappearance of the person. An officer who arrests without a genuine necessity justification, or without reasonable grounds for suspicion, may have made an unlawful arrest, and that opens the door to a civil claim for wrongful arrest and false imprisonment.
Once you arrive at the custody suite, a custody officer, who is independent of the investigation and responsible for your welfare, must carry out an initial assessment and inform you of your rights. You are entitled to receive a written notice of those rights and to have them explained to you.
Under section 58 of PACE, you have an absolute right to free and independent legal advice at any time during your detention. This right must be communicated to you at the outset, and you must not be interviewed until you have had a reasonable opportunity to obtain that advice, unless you waive the right clearly and of your own free will.
The police can delay access to a solicitor only in very limited circumstances, specifically where the detainee is suspected of an indictable offence and an officer of at least superintendent rank authorises the delay on the basis that allowing legal advice would lead to interference with evidence, alerting of co-suspects, or other specific harms. These circumstances are narrow and the delay must not last longer than is necessary. Any breach of this right is serious and may render a subsequent interview, and the evidence obtained in it, challengeable.
Section 56 of PACE gives you the right to have one person told that you have been arrested and where you are being held. Again, this can be delayed in specific circumstances in serious cases, but the delay must be authorised by an inspector or above and must be justified on defined statutory grounds. The police cannot simply withhold this information indefinitely.
Your detention must be reviewed periodically by a review officer, who is separate from the investigating officer. The first review must take place within six hours of detention, with further reviews at nine-hourly intervals after that. At each review, the officer must consider whether continued detention remains necessary. If it is not, you must be released.
Under section 41 of PACE, you cannot generally be held without charge for more than 24 hours. In indictable cases, a superintendent can authorise an extension to 36 hours if the investigation requires it and is being conducted diligently. Beyond that, only a magistrates’ court can authorise further detention, up to a maximum of 96 hours from the relevant time.
PACE Code C sets out detailed standards for how detainees must be treated in custody. These include:
Failure to provide adequate welfare, or mistreatment during custody, can give rise to civil claims for breach of duty of care and, in serious cases, a breach of human rights.
You are not required to answer questions. The right to silence is a fundamental protection in English law, and you cannot be penalised simply for choosing to say nothing during a police interview. However, if you remain silent about something you later rely on in court, the court or jury may draw an adverse inference from that silence, which is why legal advice before interview is so important and should never be waived without careful consideration.
You are required to give your name and address if asked following a lawful arrest, and you must submit to certain lawful procedures such as being photographed, fingerprinted, and having a DNA sample taken.
There are clear limits on police powers that are often misunderstood. The police cannot:
Where any of these limits are crossed, the officer and the force responsible may be liable for a civil claim.
Not every procedural failing automatically gives rise to compensation, but where a breach of your rights has caused you genuine harm, distress, loss of liberty, financial loss, or injury, it may support a civil claim against the relevant Chief Constable. Common grounds for claims arising from the arrest and detention process include:
If you believe your rights were breached during an arrest or while in police custody, the practical steps are:
Satchell Moran Solicitors handles actions against the police across England and Wales on a no-win, no-fee basis. As a firm with dual Lexcel accreditation and over 30 specialist solicitors, we provide a free initial assessment of your position and advise on the realistic strength of any claim arising from an unlawful arrest, mistreatment in custody, or other breach of your legal rights.
Start your claimYes. Under section 28 of PACE, the police must inform you that you are under arrest and tell you the grounds for it at the time of arrest or as soon as practicable afterwards. An arrest where this information is not provided may be unlawful.
Yes. You have the right to remain silent and cannot be compelled to answer questions during a police interview. However, silence can in some circumstances allow adverse inferences to be drawn in court, which is why legal advice before interview is strongly recommended.
Yes. Under section 32 of PACE, an officer may search you at the time of arrest if they have reasonable grounds to believe you may present a danger or be concealing something relevant to the offence. Any search must be conducted reasonably and proportionately, and there are specific rules governing strip searches.
The caution is: “You do not have to say anything. But it may harm your defence if you do not mention when questioned something which you later rely on in court. Anything you do say may be given in evidence.” It must be given at the point of arrest and again before formal interview.
An arrest is based on reasonable suspicion, not proof. Around a significant proportion of arrested individuals are released without charge after investigation. If you were arrested without the officer having genuine reasonable grounds for suspicion, or without a necessity justification, the arrest may have been unlawful regardless of the ultimate outcome.
Write down everything you remember as soon as possible, preserve any footage or other evidence, seek medical attention for any injury and have it documented, request your custody record, and contact a solicitor specialising in actions against the police promptly, since time limits apply.
Not automatically. An acquittal or the dropping of charges does not on its own prove that the original arrest was unlawful, since different legal standards apply. It may, however, support a claim for malicious prosecution or wrongful arrest, and it is worth having your circumstances assessed by a specialist solicitor.