In the small Northern California town of Rio Vista, a woman named Katheryn Jenks calls 911 for help. But after the police arrive, she ends up injured and inside a jail cell, facing serious charges. That same day, California Governor Jerry Brown signs a new law, State Senate Bill 1421, that opens up long hidden records of police misconduct, including files that might change the outcome of Jenks' case. This story is from the new NPR series, On Our Watch.