I haven't done a detailed federalism analysis of this issue. I know, though, that Breese has some things to say about the potential spending aspect of things, so I'll leave her a moment.
The way it tends to be framed is that we tend to talk about everything up until the point of empanelment, which tends to be dealt with by the provincial Juries Act. I guess even part of the process of empanelling the jury is where the federal jurisdiction kicks in, with the Criminal Code provisions on peremptory challenges and challenges for cause. A lot of what we're talking about strikes me as being a provincial matter, like you said, the kind of thing you'd find in the Juries Act.
Certainly on this question of juror secrecy, I think that's absolutely a matter for the federal government. Ontario and Saskatchewan recently rolled out these programs. These programs are being implemented provincially, so my sense is that you're talking about collaboration when it comes to a lot of these things, with the feds and the provinces playing an important role.
Maybe, Breese, you want to say something about the spending dimension.