It begins in 1948, which is when the Universal Declaration of Human Rights was crafted. There have been numerous treaties in the decades since then. Even now, United Nations human rights gatherings of governments continue to re-examine—but in doing so, reaffirm—the fundamental human rights framework I've just described.
Yes, absolutely, governments should be innovating, exploring new strategies, being more preventive, reaching out to communities, and finding new ways to gather information. However, when they do so, we would argue—and governments themselves have argued—on the most obvious issue of all, torture, that torture never has a place in any of those activities. Whether they are the old frameworks or the new security approaches that are being explored today, torture should never be part of it, just to use one example.