DOVER — A 41-year-old Smyrna man faces 2 to 28 years in prison and will have to register as a Tier II sex offender after pleading guilty to dealing in child pornography and second-degree unlawful sexual content, the Delaware Department of Justice said.

Between January and February 2018, the DOJ said, former First State Military Academy instructor Troy McQueen made unlawful sexual contact with a cadet on school property in Clayton and had nude photographs of the cadet on his cellphone. A Kent County Superior Court judge will sentence McQueen on Aug. 28. Deputy Attorney General Kathleen Dickerson secured the plea and Lorraine Freese assisted with the case.