My psycho ex called the police and told them I trashed his car, just another thing to try and isolate me. They went to see him, were utterly convinced by him and came round to my house. It was terrifying having two coppers completely convinced I'd done it and not listening to me.
I asked them to at least check him with the station. They relented, and were told that discussions were under way to move me to a new location because they believed he was going to end up killing me.
That is how convincing narcs are.