Abstract: With respect to questions of fact, people use heuristics - mental short-cuts, or rules of thumb, that generally work well, but that also lead to systematic errors. People use moral heuristics too - moral short-cuts, or rules of thumb, that lead to mistaken and even absurd moral judgments. These judgments are highly relevant to law and politics. Examples are given from a number of domains, with an emphasis on appropriate punishment. Moral framing effects are discussed as well.