A U.S. Fish and Wildlife Service employee admitted in federal court in Baltimore on Friday that he embezzled more than $26,000 by using his government-issued credit card to make personal purchases at Best Buy and other stores, authorities said.

The announcement was made by Maryland U.S. Attorney Rod J. Rosenstein and Mary L. Kendall, acting Inspector General, Department of the Interior, Office of Inspector General.

Sheldon S. Mixon, 42, of Elkridge, made the purchases between 2008 and 2011, according to his plea agreement. Mixon made purchases totalling between $26,000 and $70,000, according to the plea agreement.

In addition to Best Buy, Mixon bought items at Office Depot and other retail stores, authorities said.

Mixon faces a maximum sentence of 10 years in prison and a fine of up to $250,000, authorities said. As part of his plea deal, Mixon has agreed to forfeit the amount of money he embezzled, prosecutors said. The judge will determine that amount at Mixon’s sentencing, which is scheduled for Jan. 11.