Your interviewer wants to know how well you have prepared for this opportunity and how flexible your hours are. Although they advertise that they have flexible work schedules, be mindful that the Border Force is a 24 hours a day, 365 days a year. As a result, their preferred candidates will be open to working a variety of shifts, which may include starting early, finishing late, covering night shifts, and working weekends and holidays. You may also be expected to work a minimum of a 37-hour week, yet shifts can sometimes be up to 12 hours long. So when answering this question, it is best to be honest and set your expectations.