Innocence Projects/Networks.

DNA testing has created a revolution in crime-fighting and convicting the guilty. It has also created a revolution in freeing innocent people. Innocence projects of various types have sprung up all over the nation. There are at least 3 in Texas. Here's a good state-by-state list with links.

New DNA technique, familial matching, nabs accused serial killer

A relatively new DNA matching technique, "familial DNA," helped catch an accused serial killer. If this technique proves valid and reliable, it could result in even more of the guilty being punished and more of the innocent being cleared. LINK