Minnesota stood out as an outlier regarding metal detectors, as 33 state capitols have some kind of security screening at their entrances. ADVERTISEMENT“I thought it was, you know, fairly overwhelming that 33 capitols across the country have some type of screenings or metal detectors. Members of the Advisory Committee on Capitol Area Security discuss potential changes to security, like metal detectors, on Monday, Sept. 22, 2025. According to the National Conference of State Legislatures, 25 state capitols prohibit the open-carrying of firearms. “My concern … is, what does it mean for every building on Minnesota Capitol grounds?