Postgraduate studies

Hello! Today I'm going to talk about dreams.
As some might know, I really love law and I want to work in the General Conmptroller, because I think this days we need to look out what people does because we have a lot of people who commit corruption in Chile, and I think that we work for making lifes of others better, and not making just our lifes better with money.
That is why I want to make a postgrade about administrative law, because in Public Administration we have only 3 classes about law, and I found out that I really liked it so I started thinking about having a degree in administrative law.
Sadly for me, I've searched in PUCV, PUC and Universidad de Chile, and all the degrees in administrative law are only for lawyers, so I can't make them :(
If I'm being honest, I haven't look abroad so I don't know if this requirement exists only here in Chile or is everywhere (hope this exists only in Chile, because I really want to do it).
Anyway, I say this is only a dream because I don't have the money and I want to have courses about other things. I like learning new things and I want to have courses about cooking, masagges, the space, dogs and so many other things that I'll need four lifes to do everything I want jajaja.
So that's all!