An appropriate adult is a person required by law to be present during police custody procedures when a suspect is a child or a vulnerable adult. In England and Wales, the role was created under the Police and Criminal Evidence Act 1984 (PACE) and its accompanying Codes of Practice. The appropriate adult exists to safeguard the rights, welfare, and fair treatment of people who may not fully understand what is happening to them during detention and questioning. Though the concept sounds straightforward, how it works in practice is often messy, inconsistent, and poorly understood by both police officers and the appropriate adults themselves.
Where the Safeguard Came From
The appropriate adult role traces back to a notorious miscarriage of justice in the 1970s. Three young men, including two juveniles and one with learning difficulties, were wrongly convicted of killing Maxwell Confait. An inquiry into the case found that the existing rules governing police questioning were inadequate when it came to protecting vulnerable suspects. That inquiry led to the Royal Commission on Criminal Procedure, which in turn produced PACE in 1984.1PubMed Central. Interpreting and Reframing the Appropriate Adult Safeguard PACE was designed to balance effective policing with fairness, openness, and protections for people in custody. Among its key innovations was the appropriate adult safeguard, aimed at ensuring that vulnerable suspects would not be left to navigate the criminal justice system alone.
The legislation was a direct response to the recognition that some people in police custody simply cannot advocate for themselves. A teenager, someone with a learning disability, or a person experiencing a mental health crisis may not understand their right to silence, may be easily led during questioning, or may agree to things they do not comprehend. The appropriate adult was meant to fill that gap.
Who Gets an Appropriate Adult
Under PACE Code C, two broad categories of people are entitled to an appropriate adult. The first is anyone under 18. The second is any adult who the custody officer believes may be mentally disordered or otherwise mentally vulnerable. In practice, that second category is where things get complicated. A custody officer is the person who decides whether someone needs an appropriate adult, and that decision depends on the officer recognizing vulnerability in a high-pressure, time-constrained environment.
Research has shown that custody officers are not especially good at this. A study examining how well police custody assessments identified intellectual disabilities and attention deficit hyperactivity disorder found significant gaps. Screening rates for these conditions varied widely, with some conditions flagged far more often than others.2PubMed Central. The effectiveness of police custody assessments in identifying suspects with intellectual disabilities and attention deficit hyperactivity disorder Intellectual disabilities, for example, are often invisible in a brief custody interaction. A person may speak clearly and appear composed while still struggling to understand their legal rights or the implications of what they say during an interview.
When custody officers do notice something, their response is not uniform. Research looking at how officers handled different vulnerability scenarios found that when a suspect displayed comprehension difficulties, officers were more likely to call for an appropriate adult. But for other indicators of vulnerability, they were more likely to request a mental health assessment instead. The study also found significant regional variation: police forces in the North of England were less likely to arrange an appropriate adult for vulnerable suspects compared to forces in other areas.3PubMed. Identifying vulnerability in police custody: Making sense of information provided to custody officers That kind of geographical lottery in how a safeguard gets applied is a serious concern for anyone who cares about consistent justice.
What an Appropriate Adult Actually Does
The role sounds simple on paper but is deceptively broad. An appropriate adult is expected to be present during key custody procedures including the reading of rights, police interviews, and any intimate searches. Their job involves several overlapping functions:
- Communication support: helping the vulnerable person understand what is being said to them and what their options are.
- Observation: watching how the police conduct the interview and ensuring it is carried out properly and fairly.
- Intervention: speaking up if the questioning seems oppressive, confusing, or unfair.
- Welfare monitoring: making sure the detained person’s basic needs are met and that they are coping with the custody environment.
Adults with learning disabilities and mental health problems who have been through the system have said that the most important things an appropriate adult should do are look after them and help them communicate.4British Journal of Learning Disabilities. The role of the appropriate adult in supporting vulnerable adults in custody: Comparing the perspectives of service users and service providers That aligns with the spirit of the legislation, but the lived experience of having an appropriate adult present does not always match the ideal. The quality of support varies enormously depending on who fills the role and how well they understand it.
When appropriate adults are deployed effectively, they can genuinely empower young or vulnerable suspects in what is otherwise an adversarial system. Researchers have argued that good appropriate adult practice helps recalibrate the balance of power in custody, leading to fairer outcomes.5The Journal of Criminal Law. Inappropriate Adults? A Review of the Current Use of Appropriate Adults in the Criminal Justice System The problem is getting from “effectively deployed” to the reality of a chaotic custody suite at two in the morning.
Who Can Serve as an Appropriate Adult
Three categories of people can fill the role. For juveniles, it is usually a parent, guardian, or social worker. For vulnerable adults, it can be a relative, someone with experience of dealing with mentally disordered or vulnerable people, or a trained volunteer or professional appropriate adult. The hierarchy matters, because not all appropriate adults are equally effective, and some can actively make things worse.
Parents are the most common appropriate adults for children, but their involvement comes with complications. Police officers interviewed about the role have described a tension between the support parents provide and the emotional involvement that can cloud the process.6Journal of Investigative Psychology and Offender Profiling. Police Officers’ Perceptions of the Appropriate Adult Role: An Interpretative Phenomenological Analysis A parent who is angry, distressed, or themselves intimidated by the police environment may not be in a position to calmly advocate for their child. Some parents pressure their child to confess, thinking cooperation will help. Others become confrontational with officers, derailing the process. In both scenarios, the child’s interests are not well served.
For vulnerable adults, family members face a similar problem. A spouse or sibling who is emotionally entangled in the situation may not be able to offer the detached, watchful presence the role requires. This is why many areas now rely on trained volunteers or professional appropriate adults provided by local schemes, often commissioned by local authorities or police and crime commissioners. These trained individuals typically have a much better grasp of what the role entails and are more willing to challenge police conduct when necessary.
Confusion Around the Role
One of the most persistent findings in research on appropriate adults is that almost nobody fully understands the role. Police officers surveyed about it have described it as supportive but also expressed confusion about its boundaries. They reported issues with access to appropriate adults, particularly during unsociable hours, and with the emotional involvement of family members who serve in the role.7Journal of Investigative Psychology and Offender Profiling. Police Officers’ Perceptions of the Appropriate Adult Role: An Interpretative Phenomenological Analysis Meanwhile, appropriate adults themselves have described the role as complex and confusing. Some have reported being less likely to carry out their duties when faced with excessive conflict from others in the custody environment, whether from officers, solicitors, or the detainee themselves.8Criminology & Criminal Justice. The Appropriate Adult: Their perspective working in the criminal justice system
This creates a cycle where the safeguard exists on paper but erodes in practice. An appropriate adult who does not understand they can intervene during an interview will sit silently while a vulnerable person is questioned in ways they do not understand. A police officer who sees the appropriate adult as a bureaucratic formality will rush through the process or treat the appropriate adult’s presence as a box-ticking exercise. Neither outcome serves the person the safeguard was designed to protect.
The confusion is not entirely anyone’s fault. PACE Code C describes the role in fairly general terms, and there is no national standard for training appropriate adults. Some local schemes provide extensive preparation, including guidance on common vulnerabilities, legal rights, and how to challenge police conduct. Others offer little more than a brief induction. The result is a patchwork of competence, where the quality of the safeguard depends heavily on geography and the specific individual who shows up.
Practical Challenges in Custody
Beyond confusion about the role, there are logistical problems that undermine the safeguard. Custody suites operate around the clock, and finding an appropriate adult at three in the morning is not always easy. Delays in finding one can extend a vulnerable person’s time in custody, which is itself distressing and potentially harmful. There is pressure on custody officers to keep things moving, and waiting hours for an appropriate adult to arrive can feel like an obstacle to that flow.
For vulnerable adults, the identification problem compounds the access problem. If a custody officer does not recognize that a detained person has a learning disability, no appropriate adult will be called at all. The person will be processed and interviewed without the safeguard they are legally entitled to. This is not a theoretical concern; the research on screening failures suggests it happens regularly.9PubMed Central. The effectiveness of police custody assessments in identifying suspects with intellectual disabilities and attention deficit hyperactivity disorder A person with an intellectual disability who is processed without an appropriate adult may make admissions they do not understand, waive rights they cannot meaningfully exercise, or agree to procedures they find frightening without anyone explaining what is happening.
There is also a question of what happens after the interview. The appropriate adult’s role is generally understood to cover the period of detention and interview, but vulnerability does not switch off when someone leaves custody. A person who needed help understanding questions during an interview may also need help understanding bail conditions, court dates, or the implications of a caution. The safeguard, as currently structured, does not extend meaningfully into those later stages.
How Other Countries Approach the Problem
England and Wales are unusual in having a formalized appropriate adult role embedded in statute. Other countries address the same underlying problem, the vulnerability of certain suspects during police questioning, but through different mechanisms and with varying levels of detail.
In Australia, the approach varies significantly by jurisdiction. A review of Australian legislation and police policies found wide disparities in how detailed the protections were and how accessible the policies were to the public. Most Australian jurisdictions make some provision for arranging an interpreter when a suspect’s English is limited, and New South Wales has the most extensive provisions, covering a range of vulnerable persons. But the level of structured support for suspects with intellectual disabilities or mental health conditions is generally less codified than in England and Wales.10Australian Institute of Criminology. Police interviews with vulnerable adult suspects Australian vulnerability categories for this purpose include physical disability, mental and intellectual disability, Indigenous status, and people from non-English speaking backgrounds, a broader framing than the English model but not necessarily a more protective one in practice.11NCJRS Virtual Library. Police Interviews with Vulnerable Adult Suspects
In continental Europe, the picture is similarly uneven. A comparative analysis of England and Wales alongside Belgium found that neither system offers an ideal approach to protecting vulnerable suspects, but that each could learn from the other.12New Journal of European Criminal Law. Protecting vulnerable suspects in police investigations in Europe: Lessons learned from England and Wales and Belgium The European Union’s Directive on procedural safeguards for children in criminal proceedings (2016) mandates certain protections for juvenile suspects across member states, but equivalent protections for vulnerable adults are far less developed at the EU level. The English appropriate adult model is often cited as a reference point in these discussions, but its well-documented implementation gaps mean it is more of an aspiration than a proven solution.
Common Misconceptions
Several misunderstandings circulate about what an appropriate adult is and is not. The most common is that an appropriate adult is a legal representative. They are not. The appropriate adult does not replace a solicitor and cannot give legal advice. Their role is to support the person’s welfare and communication, not to mount a legal defense. A vulnerable suspect is entitled to both a solicitor and an appropriate adult, and the two roles serve different functions.
Another misconception is that the appropriate adult is there to help the police get information. Some family members who act as appropriate adults believe their job is to encourage the suspect to cooperate or tell the truth. That is a fundamental misunderstanding of the role. The appropriate adult is there for the detained person, not the investigation. Encouraging someone to confess, particularly a vulnerable person who may be suggestible, runs directly counter to the safeguard’s purpose.
A third area of confusion involves who counts as “vulnerable.” Many people assume the safeguard is only for people with obvious and severe disabilities. In reality, vulnerability in custody can be situational: someone experiencing a mental health crisis, coming down from substance use, or simply overwhelmed by a frightening and unfamiliar environment may qualify. The threshold is not a diagnosis; it is a custody officer’s judgment that the person may not cope without support. That low threshold is intentional, though as the research shows, it is inconsistently applied.
What Appropriate Adults Themselves Experience
The role can be rewarding, but it is also demanding in ways that are easy to underestimate. Appropriate adults, particularly trained volunteers, often describe a sense of being caught between competing pressures. They want to support the detained person, but they also feel the weight of the custody environment, the time pressure, and sometimes open hostility from police officers who view their presence as an inconvenience. Research into appropriate adults’ own perspectives found that the role is perceived as complex and that conflict in custody can deter appropriate adults from fully performing their duties.13Criminology & Criminal Justice. The Appropriate Adult: Their perspective working in the criminal justice system
This matters because the effectiveness of the safeguard depends on the appropriate adult being willing and able to speak up. An appropriate adult who stays quiet because they feel intimidated, or because they do not want to create friction, is physically present but functionally absent. The gap between having a body in the room and having an active advocate is the difference between a safeguard that works and one that merely exists on the custody record.
Retention is another issue. Volunteer appropriate adults often burn out, particularly in areas with high demand and limited support. The emotional toll of sitting with distressed, confused, or frightened people in a custody environment takes a cumulative effect. Without proper debriefing, training updates, and recognition, volunteer schemes can struggle to maintain the workforce they need to cover callouts reliably.
The Question of Statutory Footing
For much of its history, the appropriate adult role existed in PACE’s Codes of Practice rather than in primary legislation. That distinction matters: Codes of Practice guide how police should act, but breaching them does not automatically make evidence inadmissible or give rise to a standalone legal claim. The safeguard’s enforceability has therefore been a recurring concern. If an officer interviews a vulnerable adult without calling an appropriate adult, the consequences for the case and the officer have historically been uncertain.
Reforms have gradually strengthened the footing. The Crime and Disorder Act 1998 placed duties on local authorities to provide appropriate adult services for juveniles. For vulnerable adults, local provision has developed more unevenly, often depending on commissioning decisions by police and crime commissioners. Some areas have professional appropriate adult schemes that operate around the clock. Others rely on ad hoc arrangements, social workers pulled from other duties, or family members who happen to be reachable. The lack of a single national standard means that the quality and availability of the safeguard remain, decades after PACE, something of a postcode lottery.
Researchers and practitioners have argued for years that the appropriate adult safeguard needs clearer statutory backing, mandatory national training standards, and better funding for professional schemes.14PubMed Central. Interpreting and Reframing the Appropriate Adult Safeguard Whether that happens depends on political will, but the evidence base for reform continues to grow. The original insight behind the Confait case, that vulnerable people in police custody need someone in their corner, has never been seriously challenged. The challenge has always been making the idea work reliably in the real world.