Helen Steel, the campaigner best known for the McLibel case against McDonald's, spent weeks in New Zealand in 2002 trying to trace the man who had deceived her into a two-year relationship. He was closer than she could have imagined.
John Dines, an undercover Metropolitan Police officer who used the false identity John Barker, had spied on Steel and her fellow campaigners throughout their relationship before quitting the force years later. What Steel did not know was exactly where he had gone.
