17th Judicial DA

17th Judicial District Attorney’s Office Files Sexual Exploitation of a Child Charge Against Former Adams County Teacher

November 29, 2022

Brighton, CO —Today, the 17th Judicial District Attorney’s Office is announcing the filing of a Sexual Exploitation of a Child charge against Christopher Sergeeff, 43. Sergeeff is accused of possessing child pornography between May 31, 2022, and November 17, 2022. Sergeeff was a teacher at Quist Middle School in Thornton (2019), Stargate Charter School in Thornton (2016-2018), and The Studio School in Northglenn (2019-2022). The Thornton Police Department is leading the investigation of this case. 

Sergeeff's charges include:
  • Sexual Exploitation of a Child (F5)
  • Invasion of Privacy for Sexual Gratification (F6)
Case number 2022CR3490 was filed in Adams County District Court. Sergeeff's next court appearance will be on January 12, 2023, at 10:30am. 

The filing of a criminal charge is merely a formal accusation that an individual(s) committed a crime(s) under Colorado laws. A defendant is presumed innocent until and unless proven guilty. See Colo RPC 3.6.
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District Attorney Mason assumed the oath of office on January 12, 2021. The 17th Judicial District Attorney’s Office endeavors to seek justice on behalf of the citizens of Adams and Broomfield counties in felony and misdemeanor cases. DA Mason and his staff are dedicated to transforming the criminal justice system to better serve the citizens of the 17th Judicial District.

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