McDonnell: 'We will launch a debate about tax and the economy'

Shadow Chancellor John McDonnell has said the Labour Party will launch a national debate on the way forward in terms of economic policy.

Mr McDonnell said his speech at the Labour Party conference would look at taxation and economic measures, and that policies would be tested before being introduced.

On the so-called "Robin Hood" tax, Mr McDonnell said it was a policy "on the basis it could be introduced globally".