I've used a service called docusearch. I believe it's a network of private investigators across the US. You have to select from a few "permissible purposes". I'

I've used a service called docusearch. I believe it's a network of private investigators across the US. You have to select from a few "permissible purposes". I've used it two or three times to pull plates of people dealing drugs on my street. I used the "Motor Vehicle Safety" category for these. I live right on a county line, so it helps me direct my calls to the appropriate police department, also, I like to know who these people are in case something worse ever happens.