Geoff Lindsay practised as an educational psychologist, was director of the Centre for Educational Development and Research and the first chair of the Humanities and Social Sciences Research Ethics Committee at the University of Warwick. He is now Emeritus Professor in Warwick's new School of Education, Learning and Communication Sciences. Geoff has been president of the British Psychological Society (BPS) and also served on its Professional Conduct Board, Ethics Committee, and as chair of the Investigatory Committee for ethics complaints. Geoff led the BPS initiative to achieve statutory regulationof all practitioner psychologists in the UK.Haldor Ovreeide has practised as a clinical child and family therapist and in his own institute for child and family consultation. He has been teaching and consulting colleagues in the Nordic countries on therapeutic communication with children and families, and on professional ethics. Among various contributions to governmental projects on child custody and protection issues, he convened two committees on developing the psychologist's role as an expert witness and on securing the quality of their statements. Haldor served as chair and member of the Ethical Board of the Norwegian Association of Psychologists and was, as the other two authors, a long-standing member of EFPA's Standing Committee on Ethics.Casper Koene is from the Netherlands but lives in Brussels. He worked as a clinical psychologist in sheltered workshops, in care for adults with intellectual disabilities, and in outpatient psychiatry. He then worked as a psychological adviser and senior policy officer at the Dutch Ministry of Social Affairs. Since1972, he has worked as a psychotherapist in his own practice. Casper was chair and board member of the Ethical Advisory Board of the national Dutch association of psychologists (NIP). He was chair of EFPA's Task Force on Ethics and then chair and member of the Task Force's successor, the Standing Committee on Ethics (now the Board of Ethics). Casper is currently an acting member of the Belgian statutory disciplinary board for psychologists.