Red Bull may not disclose every detail of their investigation into Christian Horner because it isn’t a legal matter, according to reports. The 50-year-old has been investigated by the F1 side since January, with Horner firmly denying allegations of inappropriate behaviour. The Red Bull chief, who has worked in his role since 2005, is confident he’ll be able to clear his name. Horner has been working as normal, with the first race of the new F1 season set to take place in Bahrain on Saturday. Yet The Sun say the full report into Horner may be kept ‘secret’ by Red Bull. The investigation, which …