Three years in a Vietnamese prison is going to be like 30 in a Western prison. It'll be a toss up as to whether on any given day it's the inmates who are kicking the crap out of him or the guards.
It isn`t 3 years, look what his lawyer says;
"With time served, Glitter will eligible for parole in eight months, and could be deported back to this country before the end of the year, his lawyer said."
Freggin` 8 months parole is what you get for writing bad checks or something, not child rape!