Book excerpt: This book explores legal and constitutional issues in Hong Kong's relationship with mainland China through an analysis of the litigation on the right of abode of the children of Hong Kong residents who are born and live in the mainland. The litigation in the Hong Kong courts and the subsequent interpretation by the Standing Committee of the National People's Congress were followed with keen interest both locally and internationally, and had provoked great controversy. The differing approaches to and styles of interpretation of the Court and the Standing Committee provide a vivid demonstration of the clash of legal systems within which Hong Kong's constitutional system has to operate. These issues are discussed in this book by Hong Kong's leading legal scholars and practitioners. This book offers perspectives to solve these controversies and to develop an acceptable approach to the interpretation of the Basic Law. It captures the sustained public debate on constitutional issues and provides a historical record of this constitutional debate. It also contains the full texts of the decision of the Court and the Interpretation by the Standing Committee.