Any professional is responsible for the damage they cause, whether on purpose or by neglect. These forensic "professionals" are not. And that's messed up. Besides, if you are both a professional and dumb or mistaken, you say that you don't know. Lying about your lack of confidence destroys human lives, and that's why I think bad "experts" should be tried for murder and probably convicted for (involuntary) manslaughter. Making expert witnesses responsible for the BS they spout would align their incentives correctly.