I used my experience at the Citizens Advice Bureau- We had to record the details of every interview that we had with clients. I showed that I understood how this was important for the organisation as a whole.
Why Barclays? What risks have you faced in your previous role or studies? How have you abided by regulations and policies? When have you solved a problem before? When have you faced a difficult situation in your work or personal life and how did you overcome it?