Please read the Official response from the Real DEA:

http://www.deadiversion.usdoj.gov/pubs/pressreleases/extortion_scam.htm

Dont be foolish and waste your hard earned money!!!

Its a aScam: Please read and keep your Money!!!!!!

Dont be Ripped Off!!!!!

(720) 881-1064
(714) 288-3835
(707) 703-1408

Repeated calls claiming to be the DEA, threatening a search and arrest warrant for an online overseas pharmacy prescription?  Trying to sell a high priced legal service? Not sure  They were stern, but When I asked pointed questions like badge and case numbers, they hung up. 
Names used:
Robert Cosal ?
Lynn Taylor

i just got off the phone with a so called special agent robbert corsol with drug enforcement administration colorado and they wanted me to call 929-268-1528 ext 0015 and i received a call 2 min later before i called the # from 929-268-1526.

how do we report this?

Just had the same call.  seemed so fishy.  i asked for his credentials and how was i supposed to know if this was real and shy on a saturday i had to pay by that monday for the fine.  his name is robert corsol 7208811064 and i was supposed to call 929-268-1528 ext 0015.  then 2 min later had a call from 929-268-1526.  pissed off i am.  he kept asking me where i was and i said isn't that in ur file?  the third time i said at home and he said ok.

This is how it works.

Have you ever.
1 order medication online
2 had an unsecure transaction on line with a credit card
3 had your card stolen

If yes, you are on a list to have these guys extort monies from you. They will call stating they are law enforcement and within 1 to 2 calls ask you to make a payment in the form of a money order. They sound so real. (they call it a fine)

We busted them today as it was hard to figure out what these guys were doing. I had my card stolen in 2007.

Numbers used to call us were
929-268-1526 (new york)

720-881-1064 (colorado)

Today, The guy was furious as I told him I wanted him to  specifically tell me what he needed from me as I had the detroit team on the other line. (the lord must have been on my side as the phone was so staticky). This guy became so irate he started to threaten me with everything under the sun on what he was going to do to me.

I told him to have a wonderful day and called the Michigan phone number which is

1-877-782-2873 Dept of homeland security extortation division

These people are out of the country! They are total scammers. Do not be afraid and call the number to report these criminals!

nuff said. :}

You could try contacting the DEA office in your state. But be aware:
There are several fake agent names making these same phone calls to people every day. I have received scam, bogus DEA phone calls from fake agents with these names, so far:
1. Nick Delgado - the most frequently used on calls made to me
2. Mike Spencer
3. John Moore
4. Kevin Coleman
5. William Rice
6. David Stone
7. John Gilmore
8. Robert Corso - the latest
==>I am confident that there are many more aliases, and I would not be surprised if there are female fake names as well.

I got a message from Colarado phone # (720)881-1064.  He said his name was Jeffrey Sweeten with the DEA and he had some very important information to discuss with me and to call him back immediately.  I did not call back, but I can't imagine what he would have to say to me because I don't do drugs and I'm not involved with drugs in any way.  Who do I report this to so that I can get this caller to leave me alone?
Thank you

he called me today. same fake name, same situation. i am officially reporting him AGAIN!! please stop these people.
thank you

EXACTLY!!! that's what i was just saying before. "sam" is apparently one of them. puhleeze people, it's just common sense.

SAME HERE!! and iv'e had them before from other numbers, also saying they are "agents" and i spoke to one, i'm in "big trouble, going to be arrested, etc etc" and whomever sam was who commented on this, he must be one of them, cause it IS a scam.
they want u to call them or answer their call & then they will threaten u, try to scare u, etc. to then PAY them to get you out of the "big trouble" which is a total lie.
i called my police dept and there was NO info on me, warrant or otherwise and the police told me it was a scam. the person who commented after "sam" is absolutely correct. that is NOT the way the govt. works. they do NOT call you to tell you that u are in trouble or going to be arrested or whatever, it's a friggin scam people!! do NOT deal w/these people. report them asap!

Called himself Robert Corso. Apparently there IS a Robert Corso who is with the real DEA in Detroit, Michigan, but there is someone (or more than one) tossing out this name and using it to scam people so that they believe that the DEA is investigating them for something. Don't believe it. This guy's number is based in COLORADO. Total BS.

Apparently, the alias, "Robert Corso," has been used by numerous scam phone numbers in other parts of the country. A total scam. Hang up on them.

The real DEA does not contact people in this way. Beware.

no thats the  real dea office in centenial colorado ...... you re not going to get contacted by dea unless you ve done something wrong in our goverment standard..

I have had a credit card theft; now, I have recieved these bogus calls from an "agent" demanding a call back.Their number is now.being investigated by my credit card company for any further fraud. Good thing I use Am Ex!
I would suggest everyone to do the same. Let's get these international thugs arrested who have hacked into accounts.

DEA SCAMMER