http://www.nfl.com/news/story?id=09000d5d802456c2&template=with-video&confirm=true 1. Page 105 of the Game Operations manual says: "No video recording devices of any kind are permitted to be in use in the coaches' booth, on the field, or in the locker room during the game." It later says: "All video shooting locations must be enclosed on all sides with a roof overhead." 2. And, a memo from Ray Anderson, NFL head of football operations, to head coaches and GMs on Sept. 6, 2006 said: "Video taping of any type, including but not limited to taping of an opponentâ€™s offensive or defensive signals, is prohibited on the sidelines, in the coachesâ€™ booth, in the locker room, or at any other locations accessible to club staff members during the game." Interpret those however, but it's pretty clear that the Pats are not being investigated for "cheating."