SDCL § 9-14-45: Lawful possession of dangerous weapon--Prohibition permitted for event--Requirements.

Notwithstanding § 9-14-44 or 9-19-20, a municipality may, by any method or means, prohibit or restrict an individual from lawfully carrying a dangerous weapon, as defined in § 22-1-2, within a building or facility at which an event is occurring, provided metal detectors are utilized to screen for any dangerous weapons and armed security personnel are posted at each public entrance.