I don't think it's about thinking, it's about the supposed probability that you will commit a crime in the future. And as for that I can imagine very well that laws can change, provided the technology is sold to politicians and to the public in the right way.
E.g. "we now have technology that can prevent rapes of children before they even happen. So many children today live in the direct neighborhood of a potential rapist - and no-one could do anything because nobody knew. But now we can spot and remove the potential rapists and give the children back the pieceful and carefree life that they deserve.
Unfortunately, as of now, making use of the technology would be in violation of certain laws - laws that made a lot of sense in the last century. But given the changes in society and the urgency of the matter, we feel a reformulation would be more than justified..."
E.g. "we now have technology that can prevent rapes of children before they even happen. So many children today live in the direct neighborhood of a potential rapist - and no-one could do anything because nobody knew. But now we can spot and remove the potential rapists and give the children back the pieceful and carefree life that they deserve.
Unfortunately, as of now, making use of the technology would be in violation of certain laws - laws that made a lot of sense in the last century. But given the changes in society and the urgency of the matter, we feel a reformulation would be more than justified..."