"Helicopter crash probe review unfair: lawyer"
That's kind of what lawyers do. They want to be in on everything. They want to have their biased opinion in the report so the eventual jury sees it as the report in being presented to them. When a lawyer says "My client has a right to be included", he means "I want to be included, so I have a better chance of winning my case". Let the experts do what they do best, without outside interference.