My school had a preprofessional committee. What happens is in December or January of the year you choose to apply, you fill out a pre-interview form. It essentially is all of your contact information. Then through the course of the semester, I filled out a Personal Data form. It was a few personal questions (like the ones asked at medical school interviews), a list of extra-currics, and a list of contact info. After we submit this form and six letters of recommendation (2 science, 2 non-science, and 2 personal) we are referred to a non-biased member of the university who conducts a "committee" interview. This person spends 1/2 hour - 1 with the applicants and goes through all of the paperwork. Although, you will never see your recommendations. The member then writes a 3-5 page composite letter and that is sent to admissions committee in addition to the letters of rec.