Both are really well made and highly enjoyable dramas about Coroners/Forensic Medicine in Ancient China and Crime Investigation. Both have capable and smart characters who don't mess around, and the plot is carefully designed and fast-paced, not a single second is wasted. I wish there were more dramas like this.
About Judge of Song Dynasty, don't hesitate because it's an old drama. Only the camerawork/color palette is dated (actually better and consistent than some dramas these days) but everything else is really good and holds well against time.