Former Katy police officer charged with using Flock license plate readers to stalk ex-wife

On May 4, 2026, Sergio Guadalupe Rodriguez, a former Katy police officer, was arrested on two third-degree felony charges: stalking and misuse of official information. Indictments accuse him of using the Katy Police Department’s Flock license plate reader system to track his ex-wife between November 2024 and April 2025, and of placing a tracking device on her vehicle. Bond was set at $15,000 per charge. Rodriguez pleaded not guilty. Court conditions prohibit him from using law enforcement databases and possessing tracking devices.