It is the responsibility, of course, of the provincial governments to ensure that their provincial prosecution services are properly supported—that they are properly staffed by prosecutors and support staff and have adequate technology to carry out prosecutions in the public interest.
If there needs to be funding, it needs to come from a level of government. Of course, it appears that it should come from the provincial level of government. However, as you know, the federal government tends to have significantly more resources to deal with these matters.