> GCHQ is quite strongly against allowing some evidence to be used in court cases because it would need to be tested in open court. Yep. And that's the whole r

> GCHQ is quite strongly against allowing some evidence to be used in court cases because it would need to be tested in open court. Yep. And that's the whole reason 'parallel construction' exists at all in the U.S.... even when NSA has solid evidence of actual crimes being conducted, they will not burn intelligence sources & methods to allow for a court prosecution of the same. So LE has to either find a way to independently arrive at the evidence that they know is there, or go without prosecuting criminals they know to be on the street. Parallel construction is definitely distasteful but nor is it planting evidence.