Discuss the strengths and weaknesses of the ‘but for’ test for factual causation

Discuss the strengths and weaknesses of the ‘but for’ test for factual causation with reference to case law.
Note that work should be printed in 12 point text, double spaced, with 2.5cm (1 inch) margins, and numbered pages. You are strongly advised to keep a back-up at all times, as extensions cannot be given for computer/printing problems.
Word limits: 2000 words
 EXCLUDING Bibliography and Footnotes