A mail carrier assigned to the Garden City Post Office has been charged with 16 felonies related to stolen credit cards.

The Nassau District Attorney's Office says Naquan Wilson, 28, of New Jersey, stole at least 30 credit cards addressed to people in the Garden City area. They say he then activated those cards and charged thousands of dollars at high-end stores in the Short Hills Mall in New Jersey. 

Diane Peress, the Nassau DA Economic Crimes Bureau chief, says Wilson was known as the "sock guy" because he would keep numerous credit cards in his sock and try them out until one worked. 

Prosecutors say Wilson activated the stolen cards by using the three- or four-digit security code on the card itself, and by using other personal information he bought on the dark web. 

Prosecutors also say Wilson's girlfriend, 33-year-old Shantavia Davis, was involved in the alleged scam. She works as an NYPD school safety agent. 

Investigators say the pair kept some of the merchandise for themselves and sold the rest of it. Those items included designer shoes, pocketbooks and outerwear. 

Wilson was arrested at the end of his shift at the Garden City post office Tuesday. Investigators say they found six stolen credit cards on him at that time.

The United States Postal Service said in a statement, "This type of alleged behavior within the Postal Service is not tolerated and the overwhelming majority of Postal Service employees are honest, hardworking, and trustworthy individuals who would never consider engaging in any type of criminal behavior."

Authorities are asking anyone with information about the alleged credit card thefts to call the Economic Crimes Bureau at 516–571–2149.