If the special prosecutor in Kansas believed along with then Kansas Attorney General Kline who appointed him that Killer Tiller had violated Kansas law, inter alia, by failing to report abortions performed on underage girls as either obstruction of justice or as violation of a mandatory reporting statute (thereby prosecuting the perp for thwarting Kansas's attempts to bring a child molestor support system to justice), what is the problem???? He is the prosecutor and not the judge or jury. There are ethical requirements that a prosecutor cease prosecuting if and when he/she believes that the law has not been broken. No ethic requires a prosecutor to be neutral between the law and the defendant who appears to have violated it.
If Paul Morrison decides to appoint his own special prosecutor to investigate abortionists and chooses the head of Planned Parenthood would you expect the investigation to be fair and impartial?