It's a scam; be sure not to pay them anything.
There is no "Financial Crime Division" or "National Crime Division". This is the same group of foreign scammers who use caller ID spoofing software or VoIP to disguise where they're really located. They also use many other fake names such as US National Bank, US Legal Investigation Bureau, Hopkins Law Office and Morgan Associates, just to name a few. One thing to remember is that anytime someone calls you demanding money to prevent your arrest, it is ALWAYS a scam. No debt collector (let alone criminals posing as debt collectors) have the authority to have anyone arrested for anything. (And it's illegal to them to threaten such a thing.) These same scammers also routinely impersonate bankers, lawyers, FBI agents, police and other law enforcement officials, which, obviously, is illegal as well. (Besides, law enforcement officers aren't in the business of debt collection, and debt is a civil matter, not criminal.)
The bottom line is, these are criminals trying to steal your money. I suggest you do all the following (most of which you can do online):
1) The U.S. Secret Service is responsible for protecting the country's financial infrastructure and payment systems from international and domestic threats. Call or write your local Secret Service field office to alert them to the details of this attempted extortion. The addresses and phone numbers for the local Secret Service field offices are listed at
http://www.secretservice.gov/field_offices.shtml or in your phone book.
2) Alert the FBI at
https://tips.fbi.gov Be sure to tell the FBI that you are being targeted by extortionists over the phone and give them all the details.
3) File a complaint with your local police. Most police departments will take a report over the phone. Be sure to tell them that you're being targeted by an extortionist and give them all the details.
4) File a complaint your state's attorney general, the contact information for whom is at
www.naag.org5) File a complaint online with The Federal Trade Commission at
https://rn.ftc.gov/pls/dod/wsolcq$.startup?Z_ORG_CODE=PU01If these crooks call back, promise them nothing, pay them nothing and tell them nothing other than that you know they're a scam and that you've reported them to law enforcement. (And be sure to report them to all the agencies above each time they call you.)
Hope this helps.