It also includes traveling to the United States where gun ownership is legal, and posting a picture of yourself holding a gun.
This comment is getting downvoted, but another comment provide a real source for this having happened to someone: https://archive.is/bH56T
... following a police complaint about stalking, against a man involved in a business dispute, seemingly among other things. He may be innocent, but there's more to the story than the picture of the gun.