1 In such a case the purchaser may plead res ipsa loquitur - the facts speak for themselves.

2 The principle of res ipsa loquitur is a special evidence rule or doctrine in Anglo-American tort law.

3 Res ipsa loquitur proven method has its advantages in handling damages in medical tort cases.

4 Res ipsa loquitur does not normally entail a presumption of the defendant's fault, nor a shift in the burden of proof.

5 Introduction of the Common Law should res ipsa loquitur of the way.