Using case law references effectively in your answers for the law optional subject is crucial for providing solid evidence and supporting your arguments. Here's a detailed explanation on how to do it:

Identify Relevant Cases:
- Read and understand the question thoroughly to identify the specific legal issues involved.
- Conduct research to find relevant case laws that have addressed similar issues.

Introduce the Case:
- Begin by introducing the case law, including the full name of the case, the court that decided it, and the year it was decided.
- Provide a brief overview of the facts and issues involved in the case.

Highlight the Holding:
- Clearly state the holding of the case, which is the decision reached by the court.
- Summarize the key legal principles established by the case.

Analyze the Reasoning:
- Explain the reasoning behind the court's decision by discussing the arguments presented by both sides.
- Identify any legal tests or standards applied by the court in reaching its decision.

Compare and Contrast:
- Compare the facts and legal issues of the case with those of the current scenario or question.
- Highlight any similarities or differences that may affect the application of the case law.

Explain the Precedent:
- Discuss the precedential value of the case, which refers to its authority in subsequent legal decisions.
- Explain whether the case is binding or persuasive precedent.
- If applicable, mention any subsequent cases that have affirmed, distinguished, or overruled the original case.

Provide Critical Analysis:
- Offer your own analysis and interpretation of the case law.
- Discuss any limitations or criticisms of the case and its application to the current scenario.
- Consider alternative perspectives or conflicting case laws, if relevant.

Cite Properly:
- Use the appropriate citation format, such as Bluebook or APA, to provide accurate references.
- Include the full case name, citation (volume, reporter, and page number), and the court that decided the case.

Conclusion:
- Summarize the key points made in your answer regarding the case law references.
- Emphasize how the case law supports or strengthens your argument.

Remember, using case law references effectively requires a thorough understanding of the legal principles involved and the ability to apply them to the given scenario or question. Use the case law to provide persuasive and well-reasoned arguments, ensuring that your answers are coherent, logical, and well-supported.