Break the question down,
1) What is statutory interpretation?
Statutory interpretation is when courts interpret an already existing law in accordance to a case or legal matter. Interpretation might happen when a word or a phrase might be unclear in an Act of Parliament.
2)How do courts use is when it comes to making laws or making a decision in court?
Courts have the rights to interpret statutes when there is a case provided in order to get the most relevant and best outcome from the case.
3) discuss the strengths and weakness of SI.
but remember, there is also mark allocations, so this could vary.
hope this helps! 🙂