What is a bill of attianer?

A bill of attainder is a legislative act that singles out and punishes a specific individual or group without a trial. It is typically used to impose penalties, such as imprisonment or exile, without providing the due process guaranteed by law. In the United States, bills of attainder are prohibited by the Constitution, ensuring that individuals cannot be punished without a fair judicial procedure. This protection is fundamental to maintaining the rule of law and preventing arbitrary governance.