I had an initial phone interview with 2 people, an HR rep and a Legal Secretary. It lasted approximately one hour. They called me the next day to set up an on-site interview, asking if I wanted a morning or afternoon slot. Once they determined a time, they e-mailed me a schedule of the morning, a map of the campus, and a benefits summary. It was a 4 hour (8:30-12:30) interview separated into 6 different interviews consisting of 10 people total. The initial interview was with HR where questions were asked to see if you reviewed the website, news articles, etc, prior to your interview. The remaining interviews were between the attorneys and legal staff. No interview was more than 2 people. The final interview was with a different HR rep who discussed your interest level, benefit packages available, and time-table of their schedule. The attorneys all seemed extremely nice, easy-going, and well-versed in their field. They were a little unprepared for the interview itself, as KOCH provides different questions based off a specific topic each interviewer is supposed to use. Most of the attorneys brought their list with them, but few seemed to stay on track with it. They mostly were interested in how your previous experience would relate to the position, past that, they were willing to chat about any (interview related) topic. VERY nice people. The staff seemed a little more pretentious, including the HR staff. They spent some time minimizing my degree and choice of college, comparing my bachelors degree from a private university to an associates degree at a community college. They just seemed like they had somewhere more important to be. It was very off-putting!