Rio Vista, CA - The Rio Vista Police Department released bodycam video Tuesday that captured a traffic stop during which a 31-year-old woman was body slammed by an officer.Police Chief Dan Dailey said Monday an internal investigation is underway to look into if the officer used excessive force.The incident began Sunday evening along Harris Drive. Officers stopped a car for suspended registration, Dailey said. They detained all four people inside the car because officers said they refused to exit the vehicle, preventing the officers from impounding the car. One of the passengers, Tyrone Clayton Jr., called his relatives to come to the scene in order to record the incident on their cellphones for transparency.Clayton’s stepsister, Cherish Thomas, and his stepmother, Deshaunna Payne, arrived on the scene and started recording the incident on their phones. Cellphone videos of the incident were posted by the family on social media.Dailey said Thomas and Payne obstructed the investigation. Officers said Thomas pushed one of them as Payne tried to hit the other officer. Dailey said that is when the officer tackled Thomas to the ground.