Officer Julissa Diaz in court right now. Should hear details about her tampering evidence charge soon. She’s suspected of stealing drugs during traffic stops. #abc13 pic.twitter.com/M2PfiWJ1UL — Courtney Fischer (@CourtneyABC13) November 10, 2017

HOUSTON, Texas (KTRK) -- A Houston Police Department officer appeared in court today after being charged with narcotics-related evidence tampering, the department confirmed to ABC13.Julissa Guzman Diaz was arrested and relieved of duty on Thursday.Diaz was sworn in more than a decade ago and assigned to the Clear Lake patrol division.According to sources, she was arrested on duty after an internal affairs sting operation. Diaz was suspected of stealing drugs during traffic stops, sources told ABC13.Internal Affairs Division officers went undercover during the investigation.Diaz is due to appear in probable cause court this morning, but will later appear for a hearing on Monday, with bond set at $2,500.She has been placed on administrative leave pending the completion of the IAD investigation, and her peace officer powers have been suspended.Houston Police Chief Art Acevedo released the following statement about Diaz's arrest: