For sure.
However, which level of government builds/runs most (admittedly, not all) of the jail space? Not everyone ends up doing federal time.
And if jails are too crowded, how much less time are “guests” spending in jail (or being kept outta custody) because “sorry, no room at the inn”?
Any party platforms out there big on sending mo’ money to the provinces/territories to build more jail space? I haven’t heard any such promises but I stand to be corrected.
Another one of those federation problems (like health care) where, to mangle the proverb, failure often has more than one parent.