CSI, Anthropologist, Professional Opinion?

I want to be a CSI or something having to do with forensics...

Don't start telling me the differences between CSI in real life and on the TV. I am not dumb, the differences are obvious.

I am 15 years old and i am in a class called Science Research, i was going to do a project on different environments and situations affecting the decomposition on a pig (kind of simulating the "Body Farm", Anthropology Research Center, in Tennessee).

I would just like to have a professional outlook on things, like describing their job, and see where i should go from here, what i should study, anything that would help.

Thank you