They are using spoofing, it displays mock up telephone number on the caller id, it is not the actual number from where they are calling. The above number is incorrect. Please ignore.

A gentleman name Alex recently called and asked to speak to my mother. He stated that he was from the crime investigation company and he urgently needed to speak with my mother. I asked him what time did his office closed and what area is his "office" located. Throughout the entire conversation this man was hesitant with every question I threw at him. By the three minute mark, he was already aggravated with me interrogating him. He spoke in an accent, but I couldn't pinpoint exactly what country he is from. Who ever gets a call from this gentleman please don't call him back. What a stupid attempt to scam people.    

I got a call from 202-239-6259 and he said his name was Alex Smith, badge # 2465, he said there is a Warrant out for me, I will be arrested in 2 hours.

i got call from same phone # ， they said same thing to me。

"Alex Smith"  (with a heavy south Asian accent ) is still at it in March 2014.    Alex is calling to report that the IRS has a case open and that we should call him back urgently.  He can keep waiting.  

I would love to see a late night host call this guy back...