In a perfect world, it would be nice to restrict activities in exactly the same area that people had previously been convicted of working within. It is very difficult. I do believe, however, that there may be technological solutions out there, certain softwares, that will monitor offenders. The challenge is if they change computers or leave their house; it is very difficult. But I do believe, again, the technological solutions are very close to being available; however, law enforcement would need additional access to ensure behaviour was being complied with.
On October 25th, 2011. See this statement in context.