Of what a prosecutor friend once told me -- that he was appalled to think of how all the power given a prosecutor these days could be used to entire ruin an honest man, or one who had made some minor error. Here's a case from the 11th Circuit, applying what appears to be established law, holding that the prosecutor and his agents are mostly protected by absolute or lesser forms of immunity from a civil rights lawsuit. Those folks had taken a fellow who had irritated a hospital by faxing it some critical humor, used perjured hearsay testimony to get him indicted for supposedly breaking into a doctor's house and assaulting him, when he's never been at the house, period, and was nowhere near the doctor that day, either. (You can use hearsay to get an indictment, and here the prosecutor's investigators probably just testified falsely that the doctor had said this had happened). That eventually got dismissed, so they brought another indictment, equally based on perjury, went to the press about the fellow's supposed crimes, etc.. The ruling doesn't say, but I assume some of the State tort claims remained.