Abstract: A handgun holster has a body that includes inner and outer sides. A catch projects into a handgun receiving pocket toward the inner side. The catch extends within and engages the trigger guard of a handgun carried in the pocket, preventing the handgun from being removed from the pocket. A part of the inner side or a resiliently movable structure associated with the inner side is moveable away from the end of the catch in response to outward pressure, to provide clearance for the trigger guard to pass by the catch so that the handgun can be removed from the holster only when the handgun is manipulated appropriately by the wearer. The catch includes a cam surface so that the trigger guard will slide past the catch when the handgun is placed into the holster.