Many would say a central bank cannot be a true "lender of last resort" in a currency union that does not share a common treasury, or at least it cannot play that role without seriously overstepping its mandate - and raising big questions about the democratic legitimacy of what it is doing.

BBC: Interview with an ECB president

The report also raises questions about the role that supermarkets and late-licensed premises have to play in the problem.

BBC: Alcohol