A fairly boring company trying to emulate more efficient private sector firms and startups. Their interview process is very typical and works to weed candidates who fit the mold of 'the best' public service candidates.
Phone screening is followed up with a group interview in which you are evaluated by managers and other research associates. They mostly look for people they think will stick around for a few years and previous experience which exactly fits their job description and not so much at the skills or aptitude of each candidate.