This catalog-style synopsis examines the topic of practitioner perspectives on what works to prevent fraud against older adults, as discussed in the Journal of Economic Criminology. It aggregates viewpoints from professionals across sectors such as financial services, social care, law enforcement, healthcare, and community organizations, focusing on the practical measures that practitioners believe are most effective in real-world settings. The coverage emphasizes prevention rather than enforcement outcomes and centers on everyday interventions, risk communication, and the design of supportive environments that reduce opportunities for fraud. The narrative is organized around common themes that practitioners report influencing preventive success, including education and awareness, process safeguards in financial transactions, and the role of trusted networks in monitoring and reporting suspicious activity. It also considers the conditions under which these preventive approaches are implemented, including resource constraints, staff training, and coordination among agencies and service providers. The synopsis notes that perceptions of effectiveness are shaped by context, such as local risk profiles, cultural and linguistic needs, and the availability of data and evaluation tools. The material offers a reference point for policy and practice by highlighting practical implications, potential standard practices, and avenues for collaboration between public institutions, private sector actors, and community groups. Overall, the focus is on translating practitioner insight into accessible guidance for safeguarding older adults from fraud, while acknowledging variation across settings and populations.