Report It To The Police..

[Steve R]

...by all means, but they might tell you to go away for now and come back in thirty or forty years' time.

[JustMike]

what are you talking about?

[Steve R]

Have you not noticed that the police are being swamped with reports of alleged crimes that are supposed to have happened thirty, forty or even fifty years ago?

I would be surprised if they had any resources left to investigate current crimes.