Without being condescending I'm not quite sure you grasp the criminal justice system and the role of the police. Not only that I doubt you are aware how incidents are screened to establish if they should be investigated in line with cost and public interest (due to the need to prioritise following cuts etc)
No I understand....
* Stealing phones is fine, police won't follow up
* stealing watches in a mugging is fine....camera evidence is too hard to identify assailants
* criminal damage is fine, it was an 'accident'
* domestic criminal damage is fine, it can't be proven, their word vs yours
I'll tell you one story I even heard as an excuse for not following up on such incidents...
* there was one scene where a girl was murdered and two guys blamed each other. The police couldn't do anything, as it was a domestic related incident with no forced entry. Both got off.
So yeah, I get it....if its violence, murder, terrorism there is a chance something might happen if there is some way to prove it. Otherwise oops. Outside of this...oh the cuts and forget a mountain of evidence on the top list, it will still be disregarded as low priority.
And forget cuts. I've seen or heard numerous examples of the police being entirely useless over the course of my whole life!
Is it a tough job, yes, am I in anyway convinced in the quality of the job, not so much!