The 7th National Audit Project (NAP7) of the RCoA examined peri-operative cardiac arrest and each of the three phases captured the involvement of anaesthesia associates in clinical practice. In view of current interest and controversy concerning the roles and scope of practice of anaesthesia associates, the authors aimed to share a full account of information collected during NAP7 to add to the limited available data in this area. This likely represents the only national dataset which incorporates anaesthetists and anaesthesia associates. This interview accompanies the paper and includes the authors Prof Tim Cook and Lee Varney, as well of the President of the Association of Anaesthesia Associates, Sarah Massey. They talk about the paper and the wider associated issues. Essential listening for all.