But-for test
But-for test
Real World
In Barnett v Chelsea and Kensington Hospital (1969), a doctor negligently sent a poisoned man away without examination — but the but-for test defeated the claim because the arsenic dose was already fatal and treatment would not have saved him.
Exam Focus
Use Barnett to illustrate where but-for fails; always apply the test as a question and answer it clearly with case support.
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