In US Law (Hearsay doctrine) that's called "admission against interest". Demonstrably self-harming statements are presumed to be honest. (The ways this can be a

In US Law (Hearsay doctrine) that's called "admission against interest". Demonstrably self-harming statements are presumed to be honest. (The ways this can be abused by liars are interesting. Example: a parent confessing to a crime their child committed.)