Location
Roch first started his commune in Quebec, but a child died and he was charged with negligence. After serving his time, he moved his "family" near Toronto, Ontario where the movie took place. He is currently being housed in New Brunswick. Anyone sentenced to over 2 years in custody may be placed in an institution anywhere in Canada. Eligibility for parole does not mean they will definitly be paroled; They have to apply and be screened by a board of human beings who all know what he did to those people.
I found this on a news site:
Although Theriault -now in New Brunswick's Dorchester Penitentiary - has been eligible for parole since 1999, he is reported planning to apply for the first time this summer (2002). Conjugal visits with three of his remaining wives have allowed him to father still more children.