Got a message from this number today had to listen to it four times to be able to try to understand this man, think he said his name is Marvin Petersen, he said there is no hope for me to resolve this case and I am facing serious charges and an officer would be contacting, as there is no hope for me. Did not return the call.

i got a call from this number he said his name is Joe Brown from federal legislation, and i am facing a serious allegation, and they will send a legal subpoena on the case and to call them for detailed instruction...I did not return the call.

He has called threating me at my job and home, there should be a law for this kind of hrassment.

There is a law for exactly this type of harassment. Contact this lawyer apparently he likes to go after fraud debt collectors.  http://www.fschulmanlaw.com/

This outfit is a scam