Finger prints (Brasilia)

Hi everybody,

I need to know where can I take my finger prints with ink ?

I need to ask for a criminal record from Canada and they ask me that a police office or officiel place put a stamp on a form with my finger print and send them.

the thing is that I don't know at all where to go and my boyfriend brazilian say that there is no place here that would accept to do that for me.

I am sure I am not alone in this situation. So where did you go?