Eloethan I won't quote all your long post but just reply to the police having more training re missing persons etc:
The calls go through to a call centre where a police call handler will listen and log the call, assess and prioritise. They get thousands of calls in a week and many from distressed people.
I think that so far, there are many facts of this case which we or even the police themselves do not know and a painstaking investigation will be undertaken. Unfortunately, the crime scene will have been compromised too.
The conduct of the two police officers is another issue and I hope they will be dealt with with the utmost severity. Yes, there does seem to be an element of sickening voyeurism around today as Anniebach has mentioned but the last people we think of indulging in this are police officers.