labor agreement for referees, which restricted them from participating in almost all forms of gambling, it was revealed that about half of the NBA's officials had made bets in casinos, albeit not with sportsbooks. In addition, almost all referees had admitted to engaging in some form of gambling. Stern stated that "[the] ban on gambling is absolute, and in my view it is too absolute, too harsh and was not particularly well-enforced over the years". The gambling rules were revised to allow referees to engage in several forms of betting—though not on sports. There were several other referee-related rule changes made: the announcement of referees of a game was moved from 90 minutes before tip-off to the morning of the game, to reduce the value of the information to gamblers; referees received more in-season training and counseling on gambling; more thorough background checks were carried out; the league declared its intention to analyze the statistical relationship between NBA games and referees' gambling patterns for those games; and the interactions between referees and NBA teams were made easier and more formal. See also "Burn Card" Inside Game (2019 film) National Basketball Association controversies References External links Author Sean Patrick Griffin discusses book, Gaming the Game: The Story Behind the NBA Betting Scandal and the Gambler Who Made It Happen on Conversations from Penn State. National Basketball Association controversies 2005–06 NBA season 2006–07 NBA season NBA