Quote Originally Posted by Antoni View Post
Not accepting that, AT ALL.

There is no way to predict why the plod might decide to investigate your airguns.

Their reasons could be unconnected with anything you have done, only something someone wrongly said you have done or might have done.

That is why I wanted to know how to be squeaky clean if the plod knocked at my door for no good reason.

From what I've read so far it's clearly unclear and it's good to read educated opinion from RobF and others.

Looks like one has to apply the 'duck test' and be very conservative when applying it.
There might be no way of predicting why you might come to the attention of the police but I don’t think there’s a single case of people being prosecuted with the greyer areas of airgun law without something else bringing them to the attention of the police beforehand. Generally the police have better things to do without feeling the need to knock on doors and get rulers and chronos out, and their need to test your gear will need to be related to their concerns. They need justification for seizure and testing. In other words you already need to be under suspicion of something to be worried.