Last June, Jonathan Hatch,  former associate professor of mathematics, was arrested and charged for allegedly using a miniature digital camera built inside a pen to take up-skirt photos of a student at the college.

Federal authorities say that Hatch, 44, pled guilty to felony peeping tom charges, and was sentenced in state and federal courts in April.

According a spokesperson for Greensboro’s U.S Attorney’s Office, Hatch was sentenced to 66 months in federal prison followed by 20 years probation.

Hatch also faced similar charges at the state level, and was given a suspended sentence by the State of North Carolina, according to a spokesperson for the Guilford County District Attorney’s office.

“He will have to file as a sex offender once he completes his federal sentence,” the spokesperson said.

Following an investigation into Hatch’s home computer, authorities found hundreds of photos of minors in sexually suggestive positions, which prompted a federal investigation, according to court documents.

Hatch, who is being held at the Federal Correctional Institution at Fort Dix, New Jersey, resigned from Guilford as allegations of his actions were made public.