From Bossman's article, the creation of the Integrity go the Game Policy:

GOODELL MOVED ON immediately -- the same day as Specter's floor statement, actually -- introducing a mandatory "Policy on Integrity of the Game & Enforcement of Competitive Rules" to be signed by owners, team presidents, general managers and head coaches after each season, swearing they had "complied with all League competitive policies." The first thick paragraph detailing prohibited acts reads like a litany of Spygate-era acts and accusations, including "unauthorized videotaping on game day or of practices, meetings or other organized team activities" and the barring of "unauthorized entry into locker rooms, coaches' booths, meeting rooms or other private areas." At the same time, the league also relaxed its investigative standard of proof to the "preponderance of the evidence," making findings of guilt easier, and required the signees to cooperate with NFL investigations.
Never given to players. Poor foresight.