I’d like to restrict this poll to what you’d do about close relatives: spouse, parent, stepparent, sibling, stepsibling, child, or stepchid. How bad a crime would the person have to commit before you’d decide that societal responsibility trumped family loyalty?
For me, it partly depends on the relationship and partly on the crime. If it were my parent, wife or child, I’d only turn them in if by doing so I could prevent serious physical harm to another. If my wife, child, or youngest sister confessed to me that they had already committed almost any crime, and there seemed to be no chance they’d do it again, I’d almost certainly keep my mouth shut; I couldn’t bear to turn them in. My youngest sister is also in this category, but because of my specific relationship with her rather than the kinship itself.
For other relatives, I’d drop a dime if they committed any variety of sexual assault, whether it were ongoing or not. I might or might not for physical assault or murder, depending on circumstances. Financial crimes or voter fraud? Not likely.
But that’s just me. Anyone? Bueller?