BUT FOR - LEGAL ASPECT DuckAssist BETA Yes, the "but-for" test is a valid legal standard used to establish causation in various areas of law, including tort and contract law. It determines whether a particular action was a necessary condition for an event to occur, meaning that "but for" the action, the result would not have happened. done by "Artificial intelligence" most often demonstrated in the Halls of Congress and the White Man's House Auto-generated based on listed sources. Responses may contain inaccuracies.