A U.S. Border Patrol agent in Tucson has been arrested on suspicion of structuring bank transactions to evade federal cash reporting requirements.

Agency officials said Tuesday that Raimundo Borjas was taken into custody March 22 and has been placed on administrative leave pending the outcome of an investigation by the FBI's Cochise Border Corruption Task Force.

They didn't speculate on how he got the money.

On Feb. 24, 2010, Borjas opened a personal checking account at Southeastern Arizona Federal Credit Union in Douglas, according to a federal court criminal complaint.

There was minimal activity in the account until Aug. 13, 2012, when Borjas deposited $2,600 in cash, states the complaint. The cash "was dirty, frayed and had holes in it," the document states.

Subsequently, Borjas made eight deposits between last Aug. 15 and Oct. 5 at the credit union, and all the deposits were for less than $10,000 to avoid federal cash reporting requirements, according to the complaint.

A total of $61,600 was deposited, and most of the money was in $100 bills, and was mutilated cash.

Borjas, who is about 40, has been an agent since 2003.

Star reporter Carmen Duarte contributed to this story.

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