I'd have a lot more sympathy for this degree of poor performance if they knew that they were just the first line and actual experts were going to come along and redo everything anyway. (Like if they were the first on scene and needed to take some kind of report just to write down initial responses.) But in this situation they're supposed to *be* the experts who come along and redo everything, right? Why would you even think it was appropriate for you to be investigating a diving incident if you didn't know anything about diving and had no expert help lined up to assist you? It's baffling.