Know your area! I was asked pretty relevant questions regarding the professional area I was entering. I know another interviewee fell down because they didn't know their stuff.
Be ready with a few questions - standard interview practice.
And be ready for a curveball - Mine was "what's your favourite song and why".
A points based selection for interview system. Interview is straight forward.
Great interview process.
Hard to say, job specific. Expect group and 1-to-1 interviews.