Dates of cases and full citations are essential.
Discuss plenty of relevant case law to support your arguments.
Identify and use appropriate writing skills, using legal conventions.
Apply given legal principles accurately and carefully to well defined problems and begin to appreciate the complexity of associated legal issues.
Justify conclusions in defined and limited contexts.
Include as many footnotes, references and bibliography.
Use relevant criminal cases.

Reading list:
Herring, J, Criminal Law: Text, Cases and Materials, OUP, 3rd ed. 2008
Allen, MJ, Textbook on Criminal Law, Oxford, 10th ed. 2009
Card, Cross & Jones, Introduction to Criminal Law, Oxford, 18th ed. 2008