Diana Mutz and Lilach Nir (2010) conducted a study of how fictional television narratives can influence viewers' policy preferences and positive or negative attitudes regarding the justice system in the real world. They found that positive portrayals of the criminal justice system were associated with viewers' more positive view of the system in real life, whereas negative television portrayals were associated with viewers' feeling that the criminal justice system often works unfairly. Furthermore, researchers found that these attitudes did influence viewers' policy preferences concerning the criminal justice system in real life.