All of you saying poor girls, naive, vulnerable, blah, blah. I am sorry, but you would think western girls are smart enough not to accept any parcels from unknown people/ saying no if asked to smuggle drugs, etc.
A jail in Peru is meant to be a jail (a place you do not want to be in) not some sort of holiday resort.
It seems to me that everyone thinks 'cuz I am British/american, etc.' other countries' rules won't apply to me. WRONG! There isn't much your embassies can do.
I would like to add, if anyone is trying to do it here, and think 'easy money', etc. DON'T. At the same time, at least they are not in a country where the punishment for that crime is the death penalty. And in Peru people love foreigners, so they will be fine. True, corrupt policemen can be found, but they can't take money you don't have and they will soon realize the girls are not wealthy.