This is what I would say:
- Discussion of what common law is - precedent, the priniciple of stare decisis, binding precedent and the court hierarchy (lower courts must follow the ruling if the material facts are similar)
- Discussion of statutory interpretation as the other way to make law, I would also just through in one example or so about why statutes need interpreting
- Then evaluate how effective it is, you would probs need 3 points how its effective and its downside, could say:
Having the doctrine of precedent ensures consistency and fairness in the outcome of similar cases however this may result
in an injustice if forced to follow an out of date precedent
Could also mention that this process is flexible because of RODD so new law can be made but some judges may be
conservative and not see it as their role to make law
And there are others
Hope that makes sense