We're in the lucky position that over the years New Order concerts have been thoroughly well documented - with one or five glaring omissions - in this respect New Order are like a development of the Grateful Dead, who always allowed fans to get out their tape recorders. Rob Gretton had a great take on this. Nowadays I guess with all the security screening it's not quite so easy.
Audience tapes vs. mixing desk. the practice of taping it - for example - my copy of 'Brixton Ace' has the guy right next to me, shouting "dogshit on my boots...".
Oh dear I thought at the time! Saw some mention in a thread a while back that there might be a separate form for all this but I don't know where.