A perfectly natural response to your assertion that YOUR gut instincts are 99.9 correct. Whilst you didn't QUITE say that few others had instincts as sharply honed as your own, it was implied.
Following procedures and " by the book investigations,etc " as EP did, isn't always the right thing to do if one or two happen to disagree and because of pressures put upon those who disagree to fall in with others or expect a telling off there will always remain doubt about something.
When " Taff " had given his verdict,everyone was satisfied that murder/suicide was the result.
Then along came S.Jones,gave his verdict and everyone agreed with him ?
This alone doesn't make sense and not one of those officers came forward to question the change. Because they were all under pressure by the man at the top to secure a conviction.
This is what's happening with every system in this country.As long as those at the top get the results they want and provided nobody asks any questions then that's fine.