This Practice Note outlines the scope and content of the statutory duty on certain public authorities to have due regard for the need to prevent people from being drawn into terrorism in the exercise of their functions (known as the ‘Prevent duty’). It covers the duty in the context of the government’s overall counter-terrorism strategy (CONTEST) and the Prevent strategy. It also considers the application of the duty to local authorities, schools, childcare providers, the health sector, prisons, probation and the police.