Abstract
This chapter draws upon ethnographic fieldwork in two New Zealand laboratories dealing with Human Assisted Reproduction Technology (HART). It explores the nature of ethical dilemmas for reproductive scientistsScientists whose workWork places them in close clinical contact with clients who seek assisted reproduction, in a field that tends to encourage scientists to become more accepting of diverse family arrangements if they were not already liberal in their thinking. Learning to be non-judgmental is a key quality that most scientific workers in this study considered essential to developing an ethical response to situations that challenged their personal values and beliefs, and which allowed them to perform their professionalProfessionalism duty to serve the public.