Canon 139

Can. 139 §1. Unless the law determines otherwise, the fact that a person approaches some competent authority, even a higher one, does not suspend the executive power, whether ordinary or delegated, of another competent authority.

Can. 139 §2. Nevertheless, a lower authority is not to become involved in cases submitted to a higher authority except for a grave and urgent cause; in this case, the lower authority is immediately to notify the higher concerning the matter.