OKLAHOMA CITY —- Far from being an agency solely dedicated to terrorism and immigration, the Homeland Security Investigations arm of U.S. Immigrations and Custom Enforcement has its hands on a multitude of criminal dealings ranging from money laundering to sex trafficking.

"Our portfolio, if I could break it down, would be involving national security and public safety, and all of our investigative components really surround three things: illicit trade, illicit travel and illicit finances," said David Marwell, special agent in charge of the Homeland Security Investigations office in Dallas, which oversees Oklahoma operations and counties in north Texas.

The agency also acts internationally, with 68 offices in nearly 50 countries, Marwell said in a presentation to the media Monday.

In addition to national security issues, the agency investigates human trafficking, child sexual exploitation, contraband smuggling, money laundering, gangs, and intellectual property rights violations, among other federal crimes.

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