In order to better meet the needs of service users involved in these activities, primarily to ensure reduction of harms in relation to drug use, sexual health and stigma, SDF sought funding to carry out research both with drug users themselves and with the staff supporting them. This report details the information gathered and highlights key issues around drugs used and sexual health issues, related harms and consequences, and information needs. It also gives recommendations with regards to the type of training which should be available for staff who support people involved in chemsex, transactional sex and IPED use.