Joe Sánchez
![Joe Sánchez during his time with the NYPD](https://upload.wikimedia.org/wikipedia/commons/3/37/Joe_Sanchez.jpg)
Upon exposing the illegal acts committed by some high-ranking NYPD officers, Sánchez was arrested on the basis of false allegations which were highly publicized by the news media, then subsequently refuted. When his initial conviction for assault was overturned, his case exposed the existence of a code of silence among police officers known as the "Blue Wall of Silence". Provided by Wikipedia