The first stage comprised of an online application form with questions about your experience and evidence about how you manage particular situations. The second stage was an interview with questions based on your experience and examples of how you have managed situations in previous roles.
I interviewed at Committee on Climate Change (London, England)
Interview
The civil service processes are followed. Behaviours and technical competencies are assessed through giving examples from previous roles. Lots of good information is available on the civil service process to help you prepare.
Interview questions [1]
Question 1
Tell us a about a time you had to solve a complex problem, and what tools and approaches you used