(especially in the US) the principle that one is justified in the use of deadly force to protect one's home and its inhabitants from intruders, without being obliged to retreat.
the castle doctrine has been used to defend a number of deadly shootings in recent years
Definition of castle doctrine in US English:
castle doctrine
noun
Law
(especially in the US) the principle that one is justified in the use of deadly force to protect one's home and its inhabitants from intruders, without being obliged to retreat.
the castle doctrine has been used to defend a number of deadly shootings in recent years