What crimes would exactly would you be proud to sell your relatives down the river for? Genuinely curious if all acts that can/could be labeled as a crime by th

What crimes would exactly would you be proud to sell your relatives down the river for? Genuinely curious if all acts that can/could be labeled as a crime by the government of the time would count. There's a fair amount of historical and current laws that have arguably zero moral good; Homophobic, Segregationist, etc.. all around the world. But alas, There's you cheerily pointing out anyone you can help identify because, it's the law after all.