In addition to physical evidence, with the surge in digital devices in people's lives a new branch of forensics has been added: Computer forensics. This is the analysis of data found on someone's hard drive (and other storage devices) or, in cases of remote attacks, a tracing of information packets that can sometimes be followed along the route of attack; the latter is called "network forensics".
If you live in the USA (because PBS restricts access and their videos aren't playable outside the country, darn it--though you could conceivably download a VPN to circumvent a regional block) and are interested in the field, then I highly recommend watching this NOVA program about forensics. It's fascinating.
Do you have any favorite examples of forensic science, either fictional or real? Do you think older techniques that are now proving to be less-than-reliable should be completely phased out? Are you in favor of DNA profiling if there's biological evidence it can be extracted from?
-----The Golden Eagle