Hannah Smithson has worked within the field of criminology for over 20 years and specialises in the field of youth justice. Hannah is the co-convenor of the award-winning Greater Manchester Youth Justice Partnership - a partnership between Manchester Metropolitan University and each of the 10 Greater Manchester youth justice services. The partnership has created a transformative new framework: Participatory Youth Practice (PYP). PYP is the first framework to be co-created with justice-involved children based on their lived experiences. PYP has had an impact on youth justice practice, on national and international youth justice strategies, and, most importantly, on justice-involved children themselves.