The justice system can be and has been manipulated by powers behind the scenes with the money to drive their own interests. Witness the DA in New Hampshire that has been sent to jail for just these offences but only after tremendous damage has been done to people's lives. Go to www.bigtrial.com for more info. I suppose we can take some comfort from the fact that one (the tip of the iceberg possibly) has had his  comeuppance. A  popular legal ambit these days is to play the legal system like a poker player, especially by driving up the costs to such an extent that the innocent cannot continue to defend themselves, and so the corruption of big money wins. Even if the innocent win, the money driven media will go in for the kill. The naive still implicitly believe in the legal system and particularly the falsely accused - to their cost.