--other than common practice.
I would suggest that if we wanted to change that, we'd have to set that up through either routine motions that govern our committee, or....
We just said that prior to appearing at committee...it would be at least five days of meetings before expected to submit their written briefs.
And members of the public are always welcome to submit their stuff to us, if not through the clerk then directly to us as members of Parliament. As I said before, regardless, members are able to use whatever information they can glean to formulate their decisions.