Yes, a lot of laws regarding football come in at National League level - such as the banning of alcohol on organised travel coaches. It does mean he'd have had a problem if we'd got through to the FA Cup 1st Round last season...
Yes, it's all to do with the Football Spectators' Act and its various amendments, all of which apply to "designated football matches".
"Designated football matches" is defined in the Football (Offences) (Designation of Football Matches) Order 2004 as "matches that involve one or more teams that compete in the top five tiers of men’s domestic football competition, the top two tiers of women’s domestic football competition, the top tier of Welsh men’s football competition, or that represent a country or territory."
This is why you can have a pint while watching the game at Farsley Celtic, but not at Eastleigh...!
As for Brad, as Andy says he had an outstanding last few weeks of the season. Prior to that I'd say he was one of our worst players! He was clearly being targeted by opposition who'd done their homework as a weak link down that side (quite successfully as well). So fair play to him for turning it around so spectacularly, you don't see that too often. If he can keep that form up, whoever gets him will have a real player on their hands.