This document defines key legal terms related to criminal law, civil law, courts and the legal process. It explains that advocacy means representing someone in court, actus reus refers to the external elements of an offence, and criminal law covers areas like theft and assault. It also defines defendant, mens rea, Supreme Court, jurisdiction, claimant, intention, prosecute, liability, voluntary, reckless, sue, omission, statute, verdict, civil, jury, and sentence.