The Brief Capitol Hill Block Party organizers outlined an updated security plan for this year's festival. According to a festival spokesperson, security measures include walk-through metal detectors at all festival entrances this year. One of the city's biggest festivals, the Capitol Hill Block Party, has made some changes for this year's shows. Capitol Hill Block Party organizers are adding walk-through metal detectors to all entrances as part of updated safety and security plans for the festival. Festival security plansWhat we know:Capitol Hill Block Party organizers work with the Seattle Police Department and Seattle Fire Department each year to manage onsite safety, crowd management, and emergency procedures.