Should information got from torture be used in an investigation?

Hmmmmm...certainly not that straight forward, but then most debative issues arent. We live in a world now where terrorist activities serial killing to mention but a few crimes seem to be on the rise. I certainly dont think that a suspect should undergo torture to get information on an ongoing crime investigation/investigation, because the person is still just a "suspect". Haven said that though, this does not mean that I agree with torture of any kind, but then am I sure about that? This is where it can get confusing. A terrorist caught trying to say blow up a building or disrupt some negotiations certainly is not a suspect per say, but how do you get information from such a person in a civil manner if there is the inclination that he is not acting alone?