Reviewing with River

Whata WackyBrew I certainly get this question on research. When reviewing if I know something the author doesn't I'll add it to my review or at least post the link to the reference. I'm struggling at the moment to research the best way DNA or human evidence is stored, for years? I've read a few articles on line but they seem to countermand each other. I wish I could just call an evidence locker and say, "Hey when you dig up a body and can't connect it to a missing person, how do you store the DNA? Or if there are body parts strewn all over, how do you retain those for evidence?