With respect to judicial misconduct, the book notes that one of the most difficult situations is determining a judges' mental capacity and their ability to competently decide cases. Accordingly, some state have imposed laws that require judges to retire at age 70. The US Supreme Court ruled about these mandatory retirement laws for judges Question 15 options: Do not violate the federal Age Discrimination in Employment Act (Gregory v Ashcroft, 1991) Only applies to judges who have served 30 or more years on the bench Only applies to judges who have served 50 or more years on the bench Do violate the federal Age Discrimination in Employment Act (Gregory v Ashcroft, 1991)