I often receive queries about forensic DNA – how to get a job, how it works, what it’s all about.  As a result, I have trawled about the web quite a lot and encountered The DNA Initiative. It’s an American website, so some things are not immediately applicable to other countries (such as Statues and case law, but they’re still interesting).  Overall ,it seems to be a comprehensive site that explains all about forensic DNA including how it can be applied in Cold Case Reviews.