Not being allowed to bring something in has always been a fear, as I show up to most games via public transportation. Like if I am coming from work with an umbrella or something... Anyway, this may be feasible but I think the teams would have to promote the heck out of it so as to not catch people by surprise. They may even have to have a "coat check" system where the fans can get it on the way out, as opposed to confiscating. The bottom line is that people feel they are paying a lot to go to the game and that they paid their hard-earned money for the jersey, which they did not even realize was "fake". I wonder whether one of the reasons they don't try this is that it's hard to not find enough "enforcers" that can actually tell the difference. Another problem the "enforcers" may have is the person that ruins a perfectly legit item with a sloppy customization...they may bust someone with a licensed product. I certainly agree with you here. At the very least, get out via web posters in the pro-shop, etc. that points out 1) the differences and 2) the theft aspect, if only to get a few people to understand. I assume (but I suppose I may be wrong) that most of the people I see wearing the fakes don't really understand that they are fake/illegally-produced either because they don't understand "officially licensed", don't realize just how "off" it looks, or accept that replicas are not going to have perfect detail (which is the case often...e.g., when MLB used to have nice looking replica jerseys with one-color block #s and names for all teams). That's a naive point of view. Most just don't care when it saves them $100-200 over an authentic. I also think the NFL at least (and its member teams) are unlikely to mount such a campaign because someone in the media would surely tear down the price of a jersey to show the profit margin. The inevitable backlash against the ridiculously high prices they charge for authentics when the NFL is raking in billions would not be good PR for the league or the teams. Can you imagine some reporter walking into a place that's probably right down the block from where the fakes are made and talking about how the people making your authentic Tom Brady jersey are making $1.50 a day, if they make their quota? That may be an exaggeration, but who knows? They're already flailing around about how to get more people to the stadium on game day and seem unable to grasp that charging $100+ for nosebleed tickets and $30-50 for parking isn't the way to start. The last thing they need or want is bad press on merchandise pricing. Are people who buy fakes depriving the league of revenue if, had they not bought a fake, they woudn't have bought a jersey at all? If so, how? Opportunity cost. The money spent on a fake could have gone to a shirt etc... at NFL.com or at the stadium. Or a car payment. I like the idea but who is going to be the judge of whether a jersey is a counterfeit?..some of the walmart/jc penney level replicas look just as fake with their shoddy screen jobs, truncated striping, and omitted details etc. the leagues reap what they sow...first off any business that offshores production is setting themselves up since intellectual property laws are not respected overseas...next is the fact that by continuing to jack up prices for replicas and authentics and in many instances sacrificing quality for the sake of margins they created a market for a product that is better than an official replica but does not have the accuracy of an authentic or even inaccuracies...there is a sweet spot in pricing that the leagues have not yet found...unfortunately what's screwing them and keeping the market for bootlegs going is not the cost to manufacture but the multitude of royalties that must be paid our to the various parties.