Character mistake: JP says, twice, that the tapes found at the shack are from the same day Jasmine was murdered. Jack then says "June 5th, 1988." But as Commissioner Selwyn Patterson said, Jasmine was killed June 3rd. Jack repeats the date being the 5th later after the visit to Leon. Who's right, is anybody's guess. (00:14:25 - 00:31:20)
Character mistake: Interrogating Delmar Brown, Jack mentions to him that "Back in '85, the band went on tour to Europe." But the tour, as established by the Commissioner, Dwayne and Florence's bank statements, happened in 1988. (00:19:40)
Character mistake: Commissioner Patterson begins the narration of the past events with a date, June 3, 1988. It's the day Jasmine died. When Dwayne a couple minutes talks about the band splitting, he mentions that there had been tension before that incident, and says that the band in the summer of 1988 had a tour planned, but Jasmine put a halt to it halfway through. It seems kinda difficult for someone who dies in early June, to put a halt halfway through a summer tour (and that fact being presented as something completely distinct from the person's death). (00:14:25 - 00:16:30)
Answer: Most likely they had only tropical exotic drinks, he wanted an old fashioned English beer.