What does the role of supermarket ombudsman involve?

Christine Tacon, who ran the Co-operative's farming unit for 11 years, has been named by the government as the first supermarket ombudsman.

Speaking on BBC Breakfast, she said that her role is to make sure that supermarkets follow the groceries supply code of practice.

The creation of the post was first recommended by the Competition Commission in 2008 to resolve disputes between supermarkets and suppliers.

As 'Groceries Code Adjudicator', Ms Tacon will have the power to fine misbehaving supermarkets.