Interruption of causation

An interruption of causation breaks the legally relevant link between the initial conduct and the damage. In Swiss doctrine and practice, this may result from an exceptional act of a third party, the victim’s own conduct, or force majeure, if it is so unusual and predominant that the original cause recedes. The threshold is high: concurrent causes usually reduce or share liability rather than eliminate causation. The analysis concerns adequate causation and legal attribution, not merely factual sequence.