Health Minister Nicola Roxon is investigating the feasibility of a nationwide ‘floor price’ for alcohol that could impact heavily on cask wine sales. While the Minister called reports of a system that would make selling alcohol below a price per standard drink illegal premature, she has tasked the new National Prevention Agency with investigating the issue. A spokesperson for Minister Roxon’s office would not respond directly to questions but referred TheShout to an interview done with Madonna King on ABC 612 Brisbane this morning (June 8).