Just think of the changes in not only technology but the type of evidence.
It wasn't that long ago that blood typing was considered a major piece of evidence, and finger prints were the end all and be all.
Now all it takes is a few skin flakes or hair, or blood and you're pretty much nailed.
__________________
My name is Ozymandias, King of Kings;
Look on my Works, ye Mighty, and despair!
|