In the new case, Melendez-Diaz v. Massachusetts, Justice Kennedy's dissent cites Canon 7-1 of the Model Code as support for his belief that criminal defense counsel has a duty of zeal. I'm a big fan of zeal (when it's properly construed). But I'm a little baffled by that cite. I notice that Justice Kennedy does use some squishy language to suggest that he's referring to his traditional belief in a duty of zeal rather than to a directly controlling authority. (It's at page 25 of his dissent.) Still, an odd cite, no?