However you look at it, it adds doubt to the 'independent investigation' that was touted by Red Bull as it opens the possibility that the conclusion of the investigation was biased given the connection between the lawyer/"investigator" and Red Bull (regardless of nth degrees of separation).
If it is true, and granted that is a big if, then it seems a bit of a rookie error from Red Bull as i would have thought any potential of doubt in the conclusion would open Red Bull to be challenged on the investigation especially from the likes of the claimant - don't hold me to that, i'm not a solicitor.
Just scroll on by if this topic is uneasy for you; folk are going to discuss this regardless of your supposed boredom given it's in the news