He was quoted in the Daily Telegraph as saying: "In the light of what happened in New Zealand, those issues are top of the agenda.
"It will be the first thing we address. Certain things will be non-negotiable. They'll be under no illusions as to where their responsibilities lie. We can't have those types of serious allegations being made for our players, our team, our sport.
"It's not what we're about. An England team has not had it before. And it shouldn't have it again. If players haven't learnt lessons from the New Zealand tour, they never will."