These guys have apparently started calling using stolen information, threatening legal action over old or non-existent debt. Of course, you can "settle this right now", etc. Otherwise the sheriff "will be sent to serve you a subpoena at" usually the last residence in public record and/or last job in public record. I will be reporting them to the FBI's ic3 group as I believe this is an attempted wire fraud.
Matt S
 Mar 18th, 2014
Some kind of scammer claiming to be issuing a subpoena, etc.
 Mar 18th, 2014