Trespassing on primary residence

[Victoria Hartley]

So my neighbor has been walking through my yard I went to his house and I asked him Not to be in my yard. He responds that he will just walk on the property line I tell him that is my property He shut the door in my face I call the cops the cops say there is nothing they can do about it if they don't physically see it themselves in meaning in person. 

where do I go from here aside from putting a fence in what else can be done