I interviewed only with a panel of two people. I interviewed for EO role in Visas and Immigration department and AO - admin team. Executive officer interview was 30 min, I was asked about 5-6 questions, first question was an icebreaker question and it's not marked. Questions were in the form of "tell us about a time" and "how would you handle", "what would you do if...". They asked me questions around success profiles regarding delivering at pace, leadership, managing quality service and working in a team. Be prepared to give constructive and confident responses in 5 min max per question. You may also be asked to answer in 2 min per question. After this they may stop you and carry on with next question. Panel was nice and friendly. They put me in ease and did not feel uncomfortable.