Right of self-defense in Maryland
Open-knowledge reference entry

In the state of Maryland, the right of self-defense is mostly governed by case law, but there is also a statute.
General principles
Maryland continues to follow common law principles on the use of force in self-defense, although there is a statute (discussed below) on the subject of immunity from civil lawsuits for the use of force to defend a home or a business.
In the case of Baltimore Transit Co. v. Faulkner, 179 Md. 598, 20 A.2d 485 (1941), which involved a civil lawsuit for assault and battery, the Court of Appeals of Maryland set forth the general common law principles of the doctrine of self-defense:
The law of self-defense justifies an act done in the reasonable belief of immediate danger. If an injury was done by a defendant in justifiable self-defense, he can neither be punished criminally nor held responsible for damages in a civil action. ... One who seeks to justify an assault on the ground that he acted in self-defense must show that he used no more force than the exigency reasonably demanded. The belief of a defendant in an action for assault that the plaintiff intended to do him bodily harm cannot support a plea of self-defense unless it was such a belief as a person of average prudence would entertain under similar circumstances.
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