Flareon Dude_

Best answer as chosen by Asker / Ratings
You know, I constantly run into the same problem, every now and again. What I like to do is go back to the crime scene and re-check every single little inch of the crime scene, and I usually find something I missed the first couple of times. If you find nothing after a thorough sweep-through, then I would suggest that you recheck all the evidence you have already obtained with the mobile analysis unit. And I mean really cross-check every single little item you have. By that, I mean pu everythng through every single machine possible, whether it seems like it will work or not. You will be surprised as to what can work for what machine. Then, if that seems like it does not work, then try matching items together, see if they fit with one-another. Oh, and that's another thing, too. Cross check every DNA sample, whether you think they'll workm or not. That can usually get you out of a fix. Then, if all else fails, then I would highly suggest you retry the whole mission from the start, until you get it right.