In June 2013, Christine Tacon was appointed as the UK’s grocery watchdog, with a mandate to enforce the UK’s groceries supply code of practice. Tacon’s office has statutory powers with the ability to investigate large UK retailers like Tesco, Sainsbury’s or Asda and can even fine supermarkets as much as £500m for non-compliance with the UK grocery code.

In her six years in office, Tacon has launched two major investigations into Tesco and the Co-op supermarket, while also delivering systemic change in what was a highly dysfunctional market back in 2013.