The Nebraska Supreme Court has upheld the conviction of a former Scottsbluff police officer on child pornography charges.

Tyler Reinpold was found guilty last year in Scotts Bluff County District Court of 10 counts of possessing child pornography and sentenced in March to 5-to-10 years in prison. He claimed the images were part of a police investigation he was conducting, but prosecutors disproved that.

In his appeal, Reinpold argued that the videos and photos found on his computer hard drive were the result of an illegal search by an investigator and that prosecutors failed to prove the photos and videos were of children under 18, but the state’s high court said Reinpold’s arguments were without merit.