Key legal question
Whether the district court judges had to recuse themselves for appearance of bias after remand and a letter about the expert evidence.
Extracted holding
No recusal was required; the challenged conduct did not objectively show bias or a serious procedural failure.
Extracted reasoning
A remand to the same lower court normally does not imply bias. The letter of 21 December 2005 showed that the court was preparing a neutral handwriting comparison and inviting comments on the expert questions, not refusing the ordered evidence or seeking a predetermined result.