The papers reflect the wide-ranging issues and concerns as well as interdisciplinary approaches that are the focus of contemporary regulators and regulatory theorists. The authors are concerned primarily with compliance (the steps firms take to meet regulatory requirements) and enforcement (all dealings between enforcement agencies and firms to ensure compliance), and they reflect how regulatory research has progressed since regulation was dominated by a narrow "command and control" model and enforcement was preoccupied with the "punish or persuade" debate. The papers cover a wide range of regulatory regimes, from environmental and occupational health and safety regulation to the regulation of competition, the regulation of the professions, and the interface between police services and other parties. One paper analyzes the way in which Australian police services are integrating their resources with those of other institutions for the purposes of establishing an efficient and democratic policing network and outlines a range of groups and functionaries, other than the public police, that have key roles in the prevention of crime, the regulation of conduct, and the maintenance of order. Another paper examines "third-party policing," where police persuade or coerce third parties to be responsible for preventing crime or reducing crime problems. It identifies the prospects and challenges for third-party policing and considers its implications for regulators and its place in the "new regulatory state." References accompany each paper.