http://spore62ngzdpkqt3jlq57fxdw3j6rhrravvgox5yx66lsiikrpxktgad.onion/law-enforcement.html
Though we may be able to tell if they connect to us via "normal" internet or our Tor Hidden Service. Unless a user sends us a message telling us that they live at such-and-such an address, with a certain name, and that they're using a given token, we have very little, if any, personal information on them.