An Omaha man who recently completed a five-year stint in federal prison on child pornography charges will return to prison for 11 years after he was convicted again of the same offense.
Calvin Dugan, 36, was sentenced on Tuesday to 132 months in federal prison after he pleaded guilty to one count of possessing child sex abuse materials. He was on federal supervised release for a 2018 conviction on the same charge at the time of the new offense.
Dugan was released from prison in July 2022, according to court documents. He was placed on a 10-year term of supervised release, which required mandatory polygraph tests and a computer monitoring program.
During a polygraph exam last August, according to Dugan’s plea agreement, Dugan admitted to possessing multiple unapproved electronic devices. When probation officers searched his home the next day, they found a cellphone, gaming console, and multiple SD cards and flash drives. All of the devices were seized, and Dugan was taken into custody.
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When the devices were analyzed by the Douglas County Sheriff’s Office, investigators found more than 650 images that constitute child sex abuse materials. Some of the images depicted prepubescent girls.
A federal grand jury indicted Dugan in November 2023. In exchange for his guilty plea on one count of possessing child pornography, prosecutors dismissed the supervised release violation from the 2018 case, which could have carried additional prison time.
After Dugan completes his prison sentence, he will again be placed on supervised release for 15 years.