This paper describes how the categorisation of patients by staff in a Frenc
h emergency department (ED) leads to the micro-rationing of care. Although
ED staff are reluctant to acknowledge it, they refuse to treat many would-b
e patients at the reception stage, and advise them to go to other care sett
ings (such as general practitioners' premises or social dispensaries). The
study analyses the judgmental categories staff use to decide patients' elig
ibility for care, paying particular attention to their clinical, organisati
onal, moral and social dimensions. Staff ration care at the point of servic
e delivery but they soften the harshness of the rationing by making a posit
ive discrimination in favour of those seen to be in real need. Data from ob
servations and interviews are used to analyse the tensions between the diff
erent models of 'local justice' employed by doctors.