The National Collaborative is a project that not only aims to empower people affected by substance use but will also set out how the rights to be included in the forthcoming UK Human Rights Bill can be effectively implemented. It will do this by applying a human-rights based approach to co-design a Charter of Rights. As part of this process, a Call for Evidence was launched to gather views from around Scotland about people’s experiences of substance use and human rights. This brought together people affected by substance use, their families and people working across a wide range of services and ran between May and August 2023.