Effective extradition procedures are an essential tool of international law enforcement, both in relation to domestic crime and, increasingly, transnational crime. New international legal frameworks are emerging with the objective of enhancing international responses to organised crime, including terrorist crimes and drug trafficking. However, at the same time as the reinforcement of international extradition obligations in instruments such as the United Nations Convention against Transnational Organized Crime, less desirable developments can be observed in the erosion, in form and in practice, of principles in extradition law which are intended to safeguard individual rights. The recognition and application of some longstanding legal principles such as the 'political offence' exception have been diluted over time, while the efficacy of others, such as the principle of specialty, has been compromised in practice. The authors argue that the important development of international extradition frameworks should be balanced against the need to ensure fair protection of requested persons.