Deadbolt
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A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. It is distinct from a spring bolt loc
Door with two locks, one in the doorknob and a separate deadbolt
Door breaching
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Door breaching is a process used by military, police, or emergency services to force open closed or locked doors. A wide range of methods are available depending on the door's opening direction, const
Deadbolt
…to the bolt itself. A deadbolt can therefore make a door more resistant to entry without the correct key, as well as make the door more resistant to forced entry. A deadbolt is often used to complement a spring-bolt lock on an entry door to a building. A deadlock, if it is cylinder operated, may be either single…
A U.S. Marine performs a ballistic breach of a padlocked door using a combat shotgun
Back kicking a door
US Marines breach a door using a sledgehammer
U.S. Army Rangers shotgun breach a door in Afghanistan