I am a Senior Lecturer in the Research Department of Clinical, Educational and Health Psychology at UCL and and a Co-investigator and Project Co-ordinator for two randomised control trials of multi-systemic therapy (MST) led by Professor Peter Fonagy at UCL and funded by the Department of Health and Department of Education. These RCTs are the START and STEPS-B MST trials, one a large multi-site trial investigating the impact of MST on antisocial behaviour and the second studying the effectiveness of MST on intervening with problem-sexual behaviour in adolescents. My interest in MST has grown out of my broader experience as a scientist-practitioner working with young people and families in Canada and the UK, especially where young people show serious problems with antisocial behaviour, as well as leading the evaluation of the first study of MST in the UK carried out at the Brandon Centre in London. Finally, I am a Co-Lead for UCL for Children and Young People-Improving Access to Psychology Therapies (CY-IAPT) initiative, a government funded program designed to improve the quality and breadth of evidence-based services available to young people and their families in the UK.