The Complex Needs Service (CNS) is a team of experienced and specialist clinicians who provide consultancy, psychological formulation, specialist assessment, supervision and training for professionals involved with young people who have complex and specific areas of need. We use a trauma-informed approach and aim to work collaboratively with the professional network around a child, so that everyone involved can share relevant information and develop understanding of the child's needs in relation to their life experiences, development, their relationships with their parents or caregivers and their family, as well as the current difficulties.