1969 Huanchaca street scandal
The Huanchaca street scandal, also known as the Huanchacazo, was a raid that occurred on 15 June 1969 in the Chilean city of Antofagasta. On the occasion, a party was taking place in which 24 homosexuals were arrested, including 9 men who were transvestites, who suffered various abuses and mistreatment by the police.
Source: Wikipedia — 1969 Huanchaca street scandal (CC BY-SA 4.0)