Stock Day's "If you build them they will come" approach to Prison Expansion is based on the idea that the invisible criminals (That commit the unreported crimes) will pony up to the jailhouse. Given falling crime rates we might expect prison populations to decline. In case the unreported, uncharged and unconvicted criminals don't show up we have bill S-10 which imposes harsh mandatory sentences for minor marijuana violations. Six months mandatory for 6 pot plants , 18 months for MJ cookies.