ShredderAs smoking guns go, the hand-written note made by John Oxland, a partner at Australian firm Clayton Utz, during a conference with his colleague Brian Wilson and two British American Tobacco (BAT) in-house lawyers takes some beating.

“Keep all research docs that became part of public domain and discover them,” he wrote. “As to other documents, get rid of them and let other side rely on verbal evidence of people who used to handle such documents.”