The whole thing could be done locally on the phone: "You appear to be watching the match at a commercial premises which hasn't paid to license - report this?"

The whole thing could be done locally on the phone: "You appear to be watching the match at a commercial premises which hasn't paid to license - report this?" Actually, thinking about this you wouldn't even really need the users to report the venues - just shaming the venue to their customers with a banner in the app might well be enough.