Hi,The AC was a one to one interview with a consultant (usual competency based questions), a role play exercise where you have 20 minutes to read over some documents and then present a conclusion to a 'managing director' of some company. This is followed by a discussion to see why you have chosen this - they want to know how you came to the conclusion and what your thought processes were so make sure to be logical. The last task is the group exercise (groups 3/4). We had 10 minutes to read over documents then 20 minutes to discuss it as a group. Then you presented (5 minutes) your findings/recommendations to 3 'board members', followed by some questions. I think it was important to listen carefully, voice your opinions and generally act like a team player. You also have plenty of opportunities to chat with people working at PA so make sure you take advantage of that time and don't spend the whole time speaking to 1 person.In terms of specific examples, I don't think that's really important as they likely change them and your recommendations should be based primarily on what you read in the documents you're given, rather than any previous research. Make sure to have a good knowledge of work PA has done in your chosen practise (lots of info on their website), this can help throughout the case study/interview sessions.Good luck!