Part 1 The new intelligence gathering - covert and proactive policing: the criminal informant - police management, supervision and control, Steven Greer and Nigel South; police surveillance and its regulation in England and Wales, Timothy John and Mike Maguire; the legal framework of covert and proactive policing in France, Stewart Field; proactive policing in France, Claude Journes; special police methods of investigation - new legislation in the Netherlands, Theo de Roos; proactive investigation - a Belgian perspective, Cyrille Fijnaut and Frank Verbruggen; intellignece servise and undercover operations - the case of Euromac, Nikos Passas and Jack Blum. Part 2 The new information gathering - some new sources: Sun Tzu goes electronic - the changing nature of proactive methods in (criminal) intelligence , Bob Hoogenboom; data bases - positive policing or civil liberties nightmare?, Fiona Donson; financial investigation and privacy in Britain and the Netherlands, Roan Lamp, Michael Levi and Wanda Kerver; police intelligence gathering and access to journalists materials, Chrisje Brants; journalists and the protection of sources of information in the Netherlands, Chrisje Brants; journalistic material in the UK criminal process, Ruth Costigan; the privilege against self-incrimination in proactive policing, Peter Alldridge and Bert Swart. Part 3 Accountability and control - some potential strategies: contolling cross border undercover operations, Jack Blum and Nikos Passas; proactive policing - limiting the role of the defence lawyer, Ed Cape and Taru Spronken; judicial regulation of covert and proactive policing in the Netherlands and England and Wales, Stewart Field and Nico Jorg; proactive policing and the principles of immediacy and orality, John R. Spencer; invading the private? - toward conclusions, Stewart Field.