Enacted by the UK Parliament in 1989, this legislation consolidates prior extradition statutes and establishes a unified framework for arresting and returning individuals to foreign states, Commonwealth countries, and colonies. It defines extradition crimes based on dual criminality and minimum imprisonment thresholds, while imposing statutory restrictions against returning individuals for political offenses or where convictions were obtained in absentia. The Act mandates committal proceedings before designated courts, empowers the Secretary of State to issue authorities to proceed, and authorizes Her Majesty to regulate specific bilateral arrangements through Orders in Council.