I was there and I can assure you that I didn't see even tens of drunken Liverpool supporters let alone hundreds. The thing was that there were only 23 turnstiles at that end of the ground (Forests end had 60). When I was trying to get into the ground there was a horrendous crush just to get near the turnstiles (there had been a successful police operation the year before to channel the fans, but this was not in force on this day). People were in real danger of dying before they even got to the turnstiles, but the police were either unaware or didn't care about this awful situation. I even saw them throw back out of the ground (through a gate) people who had climbed over the turnstiles and were showing their (genuine) tickets. If we had been able to get in the ground easily, or even if the match had been delayed then things may have turned out differently.
Btw I was interviewed by the police afterwards (they came to my place of work to take a statement) and I was asked the question if I'd seen anybody drunk, or if anybody had drink on them. I replied that I hadn't seen anyone drunk, and afterwards I had asked around for alcohol because I really needed a drink but no-one had any. The police said that they had asked this question of everyone, but could find no evidence of mass drunkenness (though there will always be a few who turn up drunk to a game) in the majority of fans, nor had any alcohol been found in the ground afterwards.