I think the Wolfgang case is interesting for two related reasons and perhaps its useful to be more precise about what they are.
Firstly, the guy was ejected from the nuLabour conference by burly stewards for heckling. This does not say anything about anti-terror laws but does say quite a lot about nuLabour's attitude to dissent, even from veteran members of their own party. Since the overall thrust of what I'm saying pertains to the propensity of the government for restricting inconvenient dissent, this incident is directly relevant to it.
Secondly, he was prevented from re-entering by some combination of police and stewards, and during the course of this was told that the police were acting under section 44 powers and given a section 44 slip. If I have got that wrong, then please do provide a factual correction, but that's my understanding based on the various accounts of the incident that I've read.
Now you quite correctly I believe, say that a) section 44 doesn't allow them to 'detain him', the words the police themselves used according to his MP John Austin, b) nor was the use of section 44 powers authorised in any case.
Now, you seem to think that this means the situation isn't relevant to anything but questions of police training or whatever and that I should shut up about it because you've told me to.
I happen to disagree with that though.
I think that if we're talking about the possibility of these powers being abused to restrict legitimate dissent then the inappropriate use of them as part of a wider incident in which I would happily agree stewards also played a significant role, to protect nuLabour from Walter Wolfgang's dissent is entirely relevant, even if an apology was issued afterwards.
I quite agree that the case is ambiguous in relation to the use of section 44 powers, but it's quite unambiguous in terms of nuLabour's attitude to dissent and in any case, in order to unambiguously show that these powers have been used with the appropriate authorisation to harass peaceful protestors, I have also cited the cases of the Arms Fair and Fairford.