computer forensics is currently in much the same state that arson forensics was at the time Texas sentenced Willingham to death. as far as I know, it hasn't killed anyone, yet...
I don't know about killed, but every time I read a blurb buried somewhere about a child porn trial (based, invariably, on the contents of a computer), I think back to one or two known cases of someone planting CP on another computer and trying to frame the owner...
There was the company that sold the US a system to find hidden messages in Al Jazera videos - I think that got a few people a trip to the orange suited holiday camp before everybody discovered it was a con
