The "but for" test is useful when two or more forces, each of which is sufficient to bring about the harm in question, are actively operating.

Question

Quizplus · Accepted Answer

The "but for" test is typically used to determine causation by asking whether the harm would have occurred "but for" the defendant's conduct. It is not designed to address situations where multiple sufficient causes are present; in such cases, the "substantial factor" test or other approaches might be more appropriate.

The "But For" Test Is Useful When Two or More