At the time, Smith - who had tracked the family down to a Wellington house where they had moved to escape him - was on bail for the sexual offending and charges of blackmail against a man who later killed himself.
He was caught in Rio de Janeiro on November 13 - a week after he left New Zealand last year.
Basil Smith, who raised his stepson from the age of 3, said he did not blame Ms Smith for her brother's escape.
"We're quite pissed off with what he's done. I think he's conned her into it," he said.
Ms Smith will appear in Auckland District Court alongside her brother next month.
She faces a maximum of seven years imprisonment if found guilty of the charge.
