Yes they claim to be DEA and they will find and use another number to call back on.  They are scammers trying to get your money by threatening you any way possible.  Dont fall for it!!!!!!!!!!!!!

DEA scam with threats, demand for $$, "go to CVS pharmacy and get "green dot moneypak" to prevent executing search warrent in one to two hours", agent will pick up money order!!!!!!!!!

I just received 2 phone calls back to back from A guy named James Roberts. I didnt not answer and let the answering machine pick up. The first message was the DEA looking for Ted Brothers, the second message was for Kathy Turn.
Obviously it was completely fake.  I heard people yelling in the background, all kinds of noise that would not be in a office building.

They will call back and claim to be from the DEA. They are lying. Google search "DEA Scam"

Face DEA scam; names gives as agents James Roberts; Joe Sheldon