This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Explore the role of custody officers during police detention in England and Wales, including their statutory duties under PACE, how they authorise detention, safeguard detainees' legal rights and welfare, manage custody records and property, and ensure lawful treatment throughout the custody process.
When someone is detained in police custody following an arrest, a custody officer plays a central and legally mandated role in how that person is treated. Under the Police and Criminal Evidence Act 1984 (PACE) and its associated Codes of Practice, the custody officer is responsible for overseeing detention, safeguarding the rights and welfare of the detainee, and ensuring that detention is lawful and properly recorded. This article explains the custody officer's functions, legal responsibilities, and the practical impact of their role on the detention process in clear, accessible terms for non‑experts and solicitors alike.
What Is a Custody Officer?
A custody officer is a designated police officer, usually of the rank of sergeant or above, appointed to oversee individuals detained in a police station custody suite. Their duties are independent of the investigative team to which the arresting officer may belong, reinforcing their role as a statutory safeguard for detained persons. If a custody officer is not available, an appropriately qualified officer may perform the functions, provided they are not involved in the offence's investigation.
Legal Foundation and Statutory Requirements
The duties and powers of custody officers are grounded in Section 37 of PACE, which instructs them to determine whether there is sufficient evidence to charge a detainee or whether detention should be authorised. Custody officers are also governed by PACE Code C - the detailed procedural code covering detention, treatment and questioning of persons by police. These legal frameworks impose both decision‑making responsibilities and protective obligations.
Authorising and Reviewing Detention
Deciding Whether to Authorise Detention
When a person arrives at the police station custody suite, the custody officer's first critical task is to assess whether continued detention is lawful and justified. This involves determining whether:
- there is sufficient evidence to charge the person with the offence for which they were arrested; or
- there are reasonable grounds to detain the person so that evidence can be obtained or preserved through questioning.
If neither condition is met, the custody officer must either release the person immediately or consider alternative lawful disposal such as bail.
Reviewing Continued Detention
Detention is not static: under PACE, custody officers (or appropriately authorised reviewing officers) must periodically review whether continued detention remains necessary and lawful. These reviews are recorded in the custody record to protect the detainee's rights and ensure that detention is not prolonged without justification.
Ensuring Compliance With Legal Rights and Codes
A custody officer is not merely an administrative role; they are charged with ensuring that all aspects of detention comply with legal standards:
Informing Detainees of Rights and Entitlements
The custody officer must ensure that the detainee is fully informed about their rights and entitlements under PACE Code C, including the right to:
- have someone informed of their arrest and detention;
- consult a solicitor privately and obtain legal advice;
- access translation and interpretation services where needed; and
- consult the PACE Codes of Practice themselves.
These rights must be explained clearly and recorded in the custody record.
Monitoring Treatment and Welfare
Custody officers are responsible for the health and welfare of the detainee during their custody. This includes:
- conducting a risk assessment for every detainee, covering health, vulnerability, and safety concerns;
- arranging healthcare or medical attention where required;
- ensuring appropriate rest, food and basic humane conditions in custody;
- making special arrangements for vulnerable persons, including children or those with mental health needs.
Managing Property and Safety
Another key aspect of the role is the handling of a detainee's personal property. The custody officer must ascertain and record what items the detainee has with them at the point of arrival and decide what property should be retained for safety, evidential or security reasons. Safekeeping and accurate documentation of such property are essential parts of the custody officer's responsibilities.
Custody officers are also responsible for ensuring the safety and security of the cell areas, appropriate staffing, and that any additional custody staff are competent and suitable to perform delegated tasks while the custody officer remains ultimately accountable.
Record‑Keeping and Documentation
Everything a custody officer does must be accurately recorded in the custody record. This is a vital legal document that:
- shows when rights were explained and exercised;
- logs reviews of detention and decisions regarding bail or release;
- records risk assessments and welfare checks; and
- supports compliance with statutory safeguards.
Custody records can be inspected by the detainee or their legal representative and may be crucial in any subsequent legal review or challenge.
Interaction With Investigating Officers
While the custody officer's role is independent of the investigation, they must coordinate with investigating officers where necessary. For example, if an investigating officer seeks to interview the detainee or conduct enquiries requiring custody control, the custody officer must decide whether to place the detainee in that officer's custody for the purposes of the Code, while retaining oversight and ensuring Code compliance upon return of custody.
Practical Example
A person is arrested on suspicion of burglary. On arrival at the police station, the custody officer:
- reviews the arresting officer's explanation and evidence;
- decides whether to authorise continued detention;
- informs the detainee of the arrest reason and their rights;
- conducts a risk assessment and arranges medical attention where necessary;
- records all decisions and rights in the custody record;
- reviews detention periodically to ensure it remains lawful.
This oversight helps ensure that detention is lawful and respects the detainee's rights throughout the process.
Summary
The custody officer is a pivotal figure in the detention process under the Police and Criminal Evidence Act 1984 framework. Their responsibilities include:
- authorising and reviewing detention decisions;
- protecting detainees' rights under PACE and the Codes of Practice;
- ensuring welfare, safety, risk management and proper treatment;
- managing detainee property and accurate record‑keeping; and
- coordinating with investigating officers in compliance with custody rules.
By performing these duties impartially and in accordance with legal requirements, custody officers uphold statutory safeguards designed to balance effective policing with respect for individual rights.
