Police Station Advice and Detention

The Police and Criminal Evidence Act 1984 (PACE) and its accompanying Codes of Practice govern the powers of the police to detain, search, and question suspects in England and Wales. PACE is the primary legislation; the Codes — of which Code C is the one that matters most at the police station — are detailed rulebooks that flesh out how those statutory powers must be exercised in practice. Code C sets out the requirements for the detention, treatment, and questioning of suspects, other than in terrorism cases (which fall under a separate code). Think of PACE as the constitution and Code C as the operating manual: PACE tells you what the police may do, Code C tells you exactly how they must do it, and a serious departure from either can unravel the prosecution's case entirely.

Source: UK Patrol Sergeant Epaulette by Smervers, CC BY-SA 4.0.

The gatekeeper of the whole process is the custody officer, a police officer of at least sergeant rank who is meant to act independently of the investigating team. Under section 37 PACE 1984, the custody officer may authorise detention without charge only if it is necessary to secure or preserve evidence relating to the offence, or to obtain such evidence by questioning the suspect. Detention is not automatic simply because someone has been arrested — the custody officer must actively turn their mind to whether continued detention is justified, and this same test resurfaces every time detention is later reviewed.

The custody officer is also responsible for opening and maintaining the custody record, the contemporaneous log that documents every significant event during the suspect's detention: when they arrived, what they were told, when they ate, when they slept, when a solicitor was contacted, and every decision taken about their treatment. For a defence solicitor, the custody record is often the first document worth requesting — it is the evidential trail that either supports or undermines a client's account of how they were treated.

Code C, paragraph 3 requires the custody officer to inform a detained person of specific continuing rights as soon as practicable after arrival at the police station. These are not a one-off warning but rights that persist throughout detention, and the detained person must also be handed a written notice setting out their entitlements, including:

• the right to free legal advice;
• the right to have someone informed of the arrest; and
• the right to consult the Codes of Practice.

Each of these three rights has its own statutory home, and each can — in narrow, tightly policed circumstances — be delayed. Understanding when and how delay is permitted is where the exam-relevant detail concentrates.

Section 58 PACE 1984: A person arrested and held in custody at a police station has the right to consult a solicitor privately at any time.

This is the right that most directly defines your role as a solicitor advising at the police station, so its contours must be second nature. The right under section 58 includes the right to consult a solicitor in person, in the absence of any other person, or by telephone — privacy of communication is the point; the police may not eavesdrop on the substance of legal advice. Crucially, advice provided through the Defence Solicitor Call Centre or a duty solicitor scheme is free of charge to the suspect regardless of their means — there is no means test at the police station, which is precisely why every suspect, however wealthy or impoverished, should be advised to ask for a solicitor.

Delaying Access to a Solicitor

Source: Reading Crown Court by R Sones, CC BY-SA 2.0.

The right is not absolute. Section 58(6) permits delay of legal advice only where the person is in detention for an indictable offence (an offence that could be tried in the Crown Court) — a suspect held for a purely summary offence can never have this right delayed. Where the offence qualifies, delay must be authorised by an officer of at least the rank of superintendent, and only on one of the specific grounds in section 58(8):

A delay of legal advice must cease the moment the justifying grounds no longer apply — it is not a fixed grace period but a continuously reviewed restriction, and under section 58(9) the detained person must be told the reason for any delay, which must itself be recorded on the custody record.

Even where delay is properly authorised, it cannot run forever: under section 58(5), a detained person must be permitted to consult a solicitor within 36 hours of the relevant time, no matter what grounds were relied upon. Thirty-six hours is therefore the outer limit — and, as you will see below, it is not a coincidence that this figure recurs across several provisions in this area.

Delay and the Interview Itself

Code C, paragraph 6 generally prohibits the police from interviewing a suspect who has requested legal advice until that advice has been received, subject to limited exceptions. One such exception is the urgent interview: an officer of superintendent rank or above may authorise an interview to proceed without waiting for a solicitor's arrival where there is, for example, a risk of harm to persons or serious loss to property — the same family of urgency-driven grounds that justifies delaying advice in the first place.

Section 56 PACE 1984 gives an arrested person held in custody the right to have one named person informed of the arrest and the place of detention. This right mirrors section 58 closely: delay is again permitted under section 56(2) only where the person is detained for an indictable offence, and the grounds for delay mirror those under section 58 — risk of interference with evidence, harm to persons, or alerting other suspects. Delay again cannot extend beyond 36 hours from the relevant time. If you can hold the section 58 framework in your head, section 56 largely falls out for free — same trigger offence type, same rank of authorising officer conceptually, same outer time limit.

This is the part of the topic that rewards a clear mental timeline more than memorised prose. Under section 41 PACE 1984, a person may not be kept in police detention without charge for more than 24 hours from the relevant time — generally the time the suspect arrives at the first police station following arrest. That 24-hour period is the default. Beyond it, detention can only continue through a structured escalation:

An extension under section 42 requires the superintendent to have reasonable grounds to believe continued detention is necessary to secure or preserve evidence relating to an indictable offence, or to obtain such evidence by questioning, and to be satisfied the investigation is being conducted diligently and expeditiously — the same "diligent investigation" safeguard that recurs whenever the police ask a court or senior officer to extend their own powers. Beyond 36 hours, only a magistrates' court can authorise further detention, first through a warrant of further detention under section 43, and then through an extension of that warrant under section 44 — but the total period without charge can never exceed 96 hours from the relevant time under any combination of these mechanisms. This is an absolute ceiling for offences dealt with under the standard PACE regime.

At the expiry of the maximum permitted detention period, a suspect who has not been charged must be released, with or without bail. There is no lawful mechanism to hold someone without charge beyond this point.

Detention is not simply left running once authorised — it must be actively re-justified at intervals. Code C requires the first periodic review of a person's detention to be carried out no later than six hours after detention was first authorised. Subsequent reviews must then follow at intervals of no more than nine hours. Each review must be conducted by a review officer of at least inspector rank who was not directly involved in the investigation — the same independence principle that underpins the custody officer's role, applied again at a senior level. The review officer's task at each stage is to consider whether the grounds for detention under section 37 — the same necessity test applied at the outset — continue to apply. If they no longer do, the suspect must be released.

Code C imposes a set of welfare guarantees that exist independently of the investigation's progress. A detained person must be given a rest period of at least eight hours in any 24-hour period, free from questioning, travel, or interruption — this is distinct from, and in addition to, the review timetable above. Detainees must also be offered adequate meals, drinks, and access to toilet and washing facilities at appropriate intervals, and Code C requires an assessment of whether a detainee is fit to be interviewed, with a healthcare professional consulted wherever there are concerns about physical or mental health. These provisions matter doctrinally as well as humanely: a detainee interviewed in breach of the rest-period or fitness safeguards is a detainee whose resulting confession may later be vulnerable to exclusion.

A person is treated as vulnerable under Code C if a police officer has any reason to suspect that, because of a mental health condition, learning disability, or other impairment, the person may have difficulty understanding the significance of questions, their answers, or the police caution. A juvenile is defined under Code C as a person who appears to be under 18. For both categories, Code C requires the presence of an appropriate adult when the suspect is interviewed, searched, or has certain other procedures carried out.

The appropriate adult's role is to safeguard the rights, entitlements, and welfare of the juvenile or vulnerable person — it is emphatically not to act as the suspect's legal adviser. The two roles are distinct and can be held by different people at the same time.

A police officer, or anyone employed by the police, can never act as an appropriate adult — the independence requirement that runs throughout this topic (custody officer, review officer, appropriate adult, solicitor) reflects a consistent design principle: whoever safeguards the suspect must stand genuinely apart from the investigation. In the same spirit, Code C requires that a solicitor attending the police station be independent of the police and act in the suspect's best interests throughout any consultation or interview.

Code C requires that any interview of a suspect at a police station be recorded, normally by audio or visual recording — a rule that exists precisely to remove disputes about what was said and how it was said. Before any interview, the suspect is given the standard police caution:

"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."

Source: Criminal Justice Bill March July 1994 by Altlondon, CC BY-SA 3.0.

That caution is the gateway to one of the most heavily examined doctrines in this area: adverse inferences from silence, under the Criminal Justice and Public Order Act 1994.

• Section 34 CJPOA 1994: a court may draw an adverse inference where a suspect fails, when questioned under caution, to mention a fact later relied on in their defence — but only where that fact was one the suspect could reasonably have been expected to mention in the circumstances existing at the time.
• Section 36 CJPOA 1994: an adverse inference may be drawn where a suspect fails to account for an object, substance, or mark found on their person, clothing, or possessions.
• Section 37 CJPOA 1994: an adverse inference may be drawn where a suspect fails to account for their presence at a place at or about the time the alleged offence was committed.

Before an inference can be drawn under sections 36 or 37, the police must give the suspect a special warning explaining, in terms they can understand, the consequences of failing to account for the matter — silence alone is not enough to trigger these two provisions; the warning is a precondition.

Advising Silence

A solicitor advising a client who has not yet had disclosure of the case against them may properly advise the client to remain silent during interview — this is a legitimate, common tactical choice, not professional misconduct. But legal advice to remain silent does not by itself prevent a court from drawing an adverse inference under section 34; it is merely a relevant factor the court weighs alongside everything else. The lesson for practice is that "my solicitor told me to say nothing" is not a magic shield — the advice must be reasonable in the circumstances, and ideally the reasoning should be capable of being explained (without breaching privilege) if the inference is later contested.

Before advising a client on how to approach an interview, a solicitor attending the police station should request disclosure from the investigating officer — knowing the shape of the case against the client is what makes advice meaningful rather than guesswork. Armed with that disclosure (or the lack of it), the solicitor's options typically fall into three categories:

1. A full comment interview — answering questions fully.
2. A "no comment" interview — declining to answer.
3. A prepared written statement handed to the police in place of answering questions.

The prepared statement is a particularly elegant tactical tool: it can help protect the client against an adverse inference under section 34 (because the fact is now "mentioned," just not tested under cross-examination) while still allowing the suspect not to answer live questions. Choosing between these three options — full comment, no comment, or written statement — sits at the heart of the applied, client-facing judgment that SQE1 rewards.

The final piece of the puzzle is what happens when the police get it wrong. Two provisions of PACE itself supply the remedy:

Section 76 PACE 1984: a court may exclude a confession obtained by oppression, or in circumstances likely to render it unreliable.

Section 78 PACE 1984: a court has a general discretion to exclude evidence if admitting it would have such an adverse effect on the fairness of proceedings that it ought not to be admitted.

Source: Crown court layout by 12xii, CC BY-SA 4.0.

A significant breach of Code C — interviewing a suspect without the requested solicitor present, or without an appropriate adult where one was required — is a classic trigger for exclusion under section 76 or 78. This is the thread that ties the entire topic together: every safeguard discussed above (the caution, the recorded interview, the appropriate adult, the timely solicitor, the rest periods) is not merely a bureaucratic box-ticking exercise. Each is a condition on which the reliability and fairness of the resulting evidence depends, and a solicitor who spots a breach at the police station has spotted, potentially, the argument that keeps the client's confession out of evidence at trial.