An interesting article by Martin Brunt about the way police and media might have avoided the current situation. With an equally interesting reply from Colin Sutton (ex Milly Dowler/Levi Bellfield Detective), confirming why things changed, but not always in a beneficial way.
Great article, interesting info and history.
However, current 'media' is not as controlled and controllable as it once was to be able to perform these off record briefings.
Mistrust in police isn't connected IMO, cases like Sarah Everard have done the real damage in public/police trust.
As regards police media PR relations, from the outset, the message should have been what seasoned Met police repeatedly state:
'We are following all lines of enquiry, we are leaving no stone unturned but cannot comment further on our current lines of investigation, they are ongoing and we will inform the public once we have further concrete information'. Factual details elaborated on, etc.
The difficulty began when they stated the 'gone into the river' hypothesis as the predominant line of enquiry, so early on.
And then just back peddling and having to justify their position from there.
Topped off by breaching privacy laws, inter alia!
But there are no real PR wins in cases like these.
The police handling of this case, will probably go down in academic papers in how not to handle a case like this!