Introduction; Models and metaphors: the theoretical framework; Policy communities and provider networks in child protection; Knowledge and networks; Accountability, agencies and professions; Power and politics in the NHS; Reluctant partners: the experience of health and social care collaboration; A system within a system: the role of the Area Child Protection Committee; Agents of change? The role of the designated and named health professionals; Sleeping partners: GPs and child protection; Health visitors and child protection; 'Healthy' networks? NHS professionals in the child protection front line; Conclusion.