Appropriate adult Under the Police and Criminal Evidence (PACE) Act 1984, young people and adults who are deemed vulnerable (i.e. those who have mental health problems and/or a learning disability) cannot be interviewed by police officers about their suspected involvement in a criminal offence in the absence of an appropriate adult being present. When a child or vulnerable adult needs to be interviewed and a parent or guardian is not available, the individual can be supported by a volunteer Appropriate Adult The role of the volunteer Appropriate Adult is to safeguard the interests of vulnerable suspects detained in police custody. The most common demand on the role is to support young people who are to be interviewed by police officers. Volunteering as an Appropriate Adult is an excellent opportunity to gain a familiarity and understanding of a number of elements of the Criminal Justice System Find Appropriate Adult volunteer roles!