This document summarizes various methods that courts use to interpret statutes, or acts of Parliament, when the meaning is unclear. It discusses intrinsic aids found within the act itself, such as the title, preamble, definitions, and schedules. It also discusses extrinsic aids outside the act, such as dictionaries, Hansard reports, and international treaties. It then examines rules of language interpretation, such as ejusdem generis and expressio unius. Finally, it analyzes the literal rule, golden rule, mischief rule, and purposive approach that courts can take when interpreting statutes. For each approach, it provides examples of cases where the rule was applied and discusses the advantages and disadvantages.