While it is an older book, Lone Star is still the go-to for police procedures and the like. Street Magic has more on what Awakened prisoners are treated to, and TMs are lucky if they're treated as good as mages.
But accessory to 10 counts of murder? That's going to be nasty. Your only hope on getting him out is to find out when the prisoner transfer from KE to Lone Star will take place, and find a way to sub in for the Lone Star crew (or, if you're feeling Pink Mohawky, attack the vehicle in transit). At the very least, your guy is going to have to invest in some minor cosmetic surgery to change his face, and a suite of new fake SINs.