Before law school I was offered a special agent job with the FBI. It took me 3 or 4 interviews, exams and some lengthy background check to get the job. The whole process took about 1.5 years. When the offer finally came through I had been working with a company on wall street for about a year.
In my opinion you are wasting your law school education if you become a special agent with FBI after graduation, as I was able to secure an offer with only undergrad degree. Maybe FBI general counsel would be a better fit. And, don't forget, the pay scale for special agent is quite abysmal. You are just federal cop, slightly more prestigious than city cop but not much more. Movies can be misleading.
Well, special agent is out of the question (that's the one where you carry guns, right?). I meant non-special agent.
I ask becauase they are coming to my school to do OCI in the fall.