Is there any reason you think they may not be able to ?
I'm not sure what I can tell you really.
The fact that you may feel the matter was settled does not mean they cannot make a report to the police.
There is no defence in saying that the matter was settled in your view.
They are free to make an allegation of crime.
Actually the fact of the matter being 'settled' is a disadvantage as they will be saying it amounts to an admission.
If people took drinks without paying then that is theft. An apology is no defence.
If the police come to your property then they will make arrests.
It is not a good idea to leave it until that point.
They will find the persons responsible in the end.
It is always better to surrender voluntarily than wait to be arrested.
Ok. Good luck.
Your understanding is incorrect but I'm afraid that I will not be able to help further if you are displeased.
All the best.