The police will not get involved with civil matters which includes the motorcycle or any disputes with regard to the use of the property.
However all the rest of it and the attitude and the slanging match and knocking on the door anti social hours and suchlike is harassment and you are entitled to protection from harassment under the Protection from Harassment Act.
Some police forces take it very seriously and others not so. If you have found that the police are not taking this particularly seriously, then make a formal complaint to the chief constable in writing. You are entitled to have this harassment stopped.
The police ultimately have the power to issue an antisocial behaviour order against the neighbour which will put him on notice that if this continues, he is liable to be prosecuted and end up in jail.
This really is a police matter and you need to press the police. Before making a formal complaint to the chief constable, you might want to speak to a more senior officer. I suggested that to a user on here a couple of days ago when the police weren’t interested in that had exactly the desired result.
Can I clarify anything for you?
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