Blind Justice by Anne Perry

In this latest book of the William Monk series, Anne Perry takes up the question of how we respond to the impartiality of the law.  Oliver Rathbone is now a judge.  He's been assigned to preside over the case of a popular preacher accused of misappropriating funds.  The prosecuting attorney is losing the case, thanks to the damning testimony of a defense witness.  Rathbone has photographic evidence that the defense witness is not reliable.  Should he break the law and leak the photograph to the prosecuting attorney so that justice is served?  Or should he obey the law and see a guilty man go free? 362 pages.