Mallum in se - Mala In Se
[Latin, Wrongs in themselves] Acts morally wrong; offenses against conscience.
In criminal law, crimes are categorized as either mala in se or mala prohibita, a term that describes conduct that is specifically forbidden by laws. Although the distinction between the two classifications is not always clear, crimes mala in se are usually common-law crimes or those dangerous to life or limb.
Battery, rape, murder and grand larceny or petit larceny are examples of offenses that courts have held to be mala in se.
Mallum prohibitum - Mala Prohibita
[Latin, Wrongs prohibited.] A term used to describe conduct that is prohibited by laws, although not inherently evil.
Courts commonly classify statutory crimes as mala prohibita. This, however, is not a fixed rule since not all statutory crimes are classified as such.
Examples of mala prohibita include public intoxication and carrying a concealed weapon.