Since there isn't really any formal pre-law program, I don't think any office at Carleton tracks where those with law school ambitions end up, as far as your specific example goes. Individual departments often keep tabs on where their grads end up, but you can't count on this for a given department. End-of-the-year issues of departmental newsletters sometimes provide this information about their graduating majors if you feel like digging around the departmental websites (for math, for example:
http://apps.carleton.edu/curricular/...6GG_05_26.pdf). The Career Center does collect information from outgoing seniors about where they will work or go to grad school, but that information is not released in any kind of report that students or the general public can view. The Career Center has an enormous binder listing the grad schools of pretty much every alum as far back as you would ever need, and it's sorted by grad school, so if you go there, you can get a rough idea of which schools are popular among Carleton grads and which aren't. The Ivy League and big state research schools are all well-represented, if that matters. Americanski (who posts here) is a Carleton '05 grad at Columbia Law School so he could probably give you a better idea of the law schools Carls end up at. I think there are two girls headed to Harvard Law this year and probably several more to other top law programs, though I should mention that law school isn't that popular of an option among Carleton students.