Whether the trial court erred by instructing that Alexander's right to defend Shreeves depended entirely on whether Shreeves actually had a right of self-defense.
Holding
Yes. Maryland Code, Article 27, § 12A protected a person who witnessed a violent assault and reasonably, in good faith, intervened to aid the apparent victim; it did not make the intervenor's defense strictly dependent on the actual rights or fault of the person aided.
Reasoning
The instruction adopted the common-law "stands in the shoes" approach: Alexander could lawfully aid Shreeves only if Shreeves was in fact entitled to use self-defense. That rule made Alexander's fate turn on Shreeves's conduct and admissions, rather than on Alexander's own perceptions and purpose when he entered the encounter.
Section 12A, enacted in 1965, changed the relevant common-law framework. Its plain language permits any person witnessing a violent assault on another to aid the assaulted person, using force no greater than the victim could use in self-defense. The statute contains no requirement that the apparent victim actually be innocent, faultless, related to the intervenor, or ultimately entitled to self-defense.
The statute was a Good Samaritan measure intended to encourage intervention against apparent violence without forcing an observer to gamble on facts that may not be known until later. Reading the former common-law restrictions back into the statute would defeat that purpose and deny protection to a person who reasonably acts to prevent injury as the circumstances appear at the time.
The jury therefore had to evaluate Alexander's own conduct: whether he reasonably perceived a violent assault, whether he acted in good faith to aid the apparent victim rather than to punish or retaliate against an officer, and whether the force he used was appropriate. The prison setting was relevant to those factual judgments, but it did not remove the statutory defense. Because the erroneous instruction foreclosed that theory by tying Alexander's defense to Shreeves's culpability, the conviction had to be reversed and the case remanded for a new trial.