I just get a feeling in this case that the investigation is following a false assumption. e.g. something they are relying upon to be a fact is either false or been interpreted incorrectly. Just getting to the end of #2 in this thread is overwhelming. Interested to know how often police are rotated on cases so they don't get so attached or obsessive bout a case and it can be regularly viewed with fresh eyes. MOO
I also have a 'feeling' all is not what it seems in William's case, froggy. In the early days I think it's entirely possible that there was a false lead or misinterpretation of the facts in the investigation into William's disappearance.
Enter DI Jubelin. If the initial investigation was headed in the wrong direction before he arrived on the scene, I'm sure that would have been swiftly remedied. I wouldn't underestimate DI Jubelin's ability to sort the wheat from the chaff. He is smart and very, very good at his chosen vocation.
I also think he knows how to find balance as evidenced by his attendances at yoga retreats and his martial arts practices. The man has focus which makes him a formidable opponent of violent criminals. I'm almost certain he's read 'The Art of War' by Sun Tzu after reading the latest article about him
(If you haven't read it, do so. It's an amazing article.)
As for the analysts, etc, I'm certain they would be rotated or be given leave if they became overwhelmed. No doubt they also have access to psychologists through an EAP.
Let's spare a thought for our police and emergency services. They see and hear things that can't be unseen or unheard and all in our service. I can't say 'Thank you.' enough to them for doing a job that must, at times, make the bulk of humanity seem 'irredeemably evil'.