I'm German, I live in Paris, with my American wife. So here comes my absolutely neutral critique : Who cares about American or British or French accent. Stiff British wouldn't make it more authentic than sloppy American. Trying to steer the show towards the International is anyway not something to hold against it. Its weak points come rather from a sometimes tepid script, foreseeable dialogs and relations. It's obvious that the producers try to be reeeaaally careful and hold on to a crime series concept that has proved entertaining so often. Unfortunately, maybe too many times. An a bit more daring approach would help the show. But it's not soooo horribly bad. Instead of canceling it, the producers should improve it - the potential is / was there.