I intend to write my final paper on cold case investigation and how technology has played a major role in solving the seemingly unsolvable. I feel this is an important topic because there is so much that has been learned in the last twenty or so years and yet still much more to learn. This topic should be used to train investigators and forensic experts alike. The more we know on the subject the more we can advance and look places once thought impossible for the answers. An example of this the many cold cases from the 1970s, before anyone knew about DNA, that has been solved in the 1990s due to the discovery and advances in DNA testing. Many have even been freed and cleared of charges they were wrongfully convicted of. This is owed in part