Temporary door barricade devices fly in the face of that rule, and the killers like those in Oxford and Bath will be able to utilize door-blocking barricades for their own ends.

Created by NIGHTLOCK, the devices anchor to the ground and use the strength of the floor to provide extra defense against a threat during a lockdown or an active shooter event.

COLUMBUS, Ohio — Ohio's building standards board took a strong position Friday against the installation of barricade devices on classroom doors in the event of an active shooter, just weeks ...