The point at which transfer of responsibility for the patient occurred during the handover process was variable and depended not only on the condition of the patient but also on the professional relationship between the nurse and doctor concerned. Handover also provided an ‘audit point’ in care where the patient’s intraoperative progress was reviewed and plans were made for further management. Here, as in the transfer of responsibility, we found evidence that nurses play a greater role in defining the limits of anaesthetists’ practice than might be expected.