The deeds of my property show that my neighbours have a right of way over our footpath on foot only. However their children were using it for skateboarding and roller blades, and we called the police, who asked the neighbours not to skate on the path. Now the children are kicking footballs into our garden to annoy us. Does this come under harassment and anti-social behaviour?
It’s not the job of the police to enforce covenants in title deeds, so I presume they intervened solely in order to keep the peace. In that case you could call them again; the police do have powers to deal with anti-social behaviour from children, but they’ve only been used to date for much more serious offences than kicking footballs, however irritating this may be. I feel that if you can ignore the children they will eventually go away.