lol I can answer this actually, my dads a police officer so i know some of this :)
When their is a problem online you can contact your local police and give them the details and if possible the location ( if not the location then they will attempt to figure it out) If hes internation then theres not much they can do. But he lives in the US ik so that means that the police will do internal contact between departments and send the details over to where they are needed and the physical stuff will be handled there.