The Basics of Self-Defence
Self-defence has been part of English common law for centuries, based on the idea that "an Englishman's home is his castle." It's a complete defence that can get you off all charges if you can prove it was justified. Pretty powerful stuff!
The defence hinges on two key questions that juries must answer. First, was it necessary to use force at all? This is judged subjectively - meaning what did you genuinely believe at the time, even if you were wrong? The landmark case R v Williams (Gladstone) established that defendants are judged on the facts as they honestly believed them to be, not what was actually happening.
Second, was the degree of force reasonable? This bit gets trickier because courts use an objective test - would a reasonable person in your shoes think the force was proportionate? The jury has to put themselves in your situation and decide if you went too far.
Key Point: You can make an honest mistake about needing self-defence (subjective test), but the amount of force you use must still seem reasonable to others (objective test).

































