The recent passage of Theresa May’s controversial Counter-Terrorism and Security Act has been met with a flurry of criticism, reiterating a familiar critique of the government’s counter-extremism strategy, Prevent. Responding to the growing support for ISIS among British citizens, the act introduces a range of more aggressive restrictions on suspected terrorists and new obligations for airlines and internet providers. Most controversially, the act places a “statutory duty” on colleges, schools, prisons, and councils to prevent terrorism, giving the Home Office rights to enforce its counter-terrorism guidance. Whereas the earlier Prevent program had been discussed in the language of community responsibility, the government’s counter-extremism strategy is now a legal obligation for a range of public sector institutions. The act falls short in several places and has been criticized for limiting academic freedoms and continuing to alienate Muslim communities in Britain. Perhaps more concerning, however, the act reveals the national government’s ongoing confusion about how to address the threat of terrorism. The definition of extremism remains vague and dissatisfying. The extent to which local communities can continue adapting the Prevent strategy to their local context is unclear. Finally, the bill leaves lingering questions about the strength of the central government’s commitment to its counter-extremism strategy.