The PCRC will be fully independent, in that it alone will decide what to investigate. It has its own rules of evidence.
The PCRC, as under the current regime of the Civilian Review and Complaints Commission, would ordinarily give the right of first instance of investigation to the RCMP or the CBSA. Experience shows that the vast majority of complaints can be resolved at that stage, with the initial investigation by the agency itself.
When the complainant is not satisfied with the results from that agency, it can turn to the commission. The commission can decide to conduct a review, so it preserves the status quo in the case of the RCMP, and in the case of CBSA it creates a parallel arrangement.