A Defense Department contractor was arrested on Friday with dozens of highly classified documents he had obtained using his security clearance, as he prepared to depart for a trip to Mexico, according to prosecutors.
The contractor, Gokhan Gun, an electrical engineer born in Turkey who now lives in a Virginia suburb of Washington, printed thousands of documents at his work for the Air Force. Many were unclassified, but some were “batches of documents from the top secret network,” according to an 11-page complaint unsealed in a Virginia federal court.
Mr. Gun is charged with illegally obtaining and retaining national defense secrets.
The case is one of several instances in recent years in which soldiers and civilians working for the military improperly retained military secrets. In March, a young Massachusetts Air National Guardsman, Jack Teixeira, accused of posting secret intelligence reports online, pleaded guilty in exchange for a 16-year sentence and an agreement to document his activities to the authorities.
Investigators are still trying to determine why Mr. Gun, who became an American citizen in 2021, hoarded so many documents. He nonchalantly carried them out of his office in rolled-up wads in plastic shopping bags, according to a law enforcement official briefed on the case.
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Mr. Gun, who frequently travels overseas and owns homes in Virginia, Texas and Florida, was taken into custody early Friday by F.B.I. agents who arrived to execute a search warrant at his house in Falls Church, Va. He was preparing to leave for what he described as a fishing trip with friends, intending to board a flight to Puerto Vallarta, Mexico, that left at 6:52 a.m.
Agents confronted him in his driveway as he awaited a ride share driver. Among his luggage they found a black backpack that contained a document marked top secret and a listing of his security clearances.
