Chapter 8 considers, from the perspective of people's courts sitting in the Mainland, the impact that the 'One Country, Two Systems' principle may have upon the treatment of the issues addressed in Chapters 5, 6 and 7. It analyses the constraints that should be imposed on the application of the social public interest exception in interregional conflict of laws cases, and the approaches that may be helpful in ascertaining the laws of Hong Kong, Macao and Taiwan.