Right, gross, but no one alive is being tortured. And mostly it is the science...which does include the bugs and sometimes tissue scraping, etc. I have to say the kudzu episode was fascinating in a scary way. I've read about kudzu, and once in a while seen something it covered, but haven't seen it in "action" before!
But back to CSI and Criminal minds...there you are often seeing them seek to rescue people currently n the clutches of the killer--Bones not so much. Makes some sense for Criminal Minds since they deal with serial killers who don't just stop, but CSI seems to be going more and more that way---pr you are shown the torture in action, not just the after effects..