TRENTON -- A state employee is accused of downloading child pornography on the job and saving the graphic files on his government-issued computer, authorities said

Kevin Smith, 64, who worked for the state Department of Labor and Workforce Development, faces a single charge of third-degree possession of 100 or more files of child pornography, according to the office of state Attorney General Christopher Porrino.

Authorities say Smith, who served as an executive assistant in the department's Division of Income Security, was suspended in June after his supervisors learned he was viewing illicit material on his work computer.

Detectives from a State Police digital investigations unit seized Smith's computer along with thumb drives and other storage devices, finding more than 100 files of child pornography on them, authorities said.

Smith, of Westmont, retired from the department during the investigation. He was arrested on Thursday, authorities said. He made an annual salary of $111,000, state records show.

In a statement, Porrino said the behavior was "especially egregious because he allegedly used a state computer to search for child pornography while on duty."

If convicted, he faces three to five years in prison.

He's being held at the Camden County jail on $50,000 bail. A spokesman for the attorney general said they had not been notified whether he had retained an attorney.

S.P. Sullivan may be reached at ssullivan@njadvancemedia.com. Follow him on Twitter. Find NJ.com on Facebook.