Police made the decision after a joint debrief which included Dunedin Venues Management Ltd chief executive Terry Davies.
"One of the ways we can mitigate that risk is to push that drinking back a bit" added Paulin.
There would be signage informing people about the ban and rubbish bins around the zone to discourage littering.
Anyone caught flouting the ban could be issued a fine of $250 and could even face arrest in extreme cases.
He added that people who showed up to the concert intoxicated - a common occurrence - would be refused entry by stadium security.
Stadium security would assess people for signs of drunken behaviour as they walked up to the gates and queued up.
"[That's] the good thing about having a queue", Paulin said.
It is estimated about 30,000 will attend the concert.