BBC News By Theo Leggett image captionThe downfall of Carlos Ghosn made headlines around the world It was a web of intrigue which led to the arrest and subsequent dramatic escape of one of the world's best-known company bosses. The spectacular downfall of the former Nissan chairman Carlos Ghosn in late 2018 made headlines on front pages around the world, as did his audacious escape from Japan more than a year later. Throughout the affair, Ravinder Passi had a grandstand seat. As Nissan's top global lawyer he was a witness to a corporate meltdown that he describes as "the lunatics taking over the asylum".