They go to the RCMP, say, " These are the documents we want" . The RCMP does the legwork, gets the documents, brings it back to that central point, sends it off to the provincial program and provides those documents to the witness.
Ils les demanderont à la GRC, qui les obtiendra et les remettra au point central, qui les enverra au programme provincial, qui se chargera de les remettre au témoin.