The element requires a voluntary act or a failure to act where a legal duty existed. It pairs with mens rea to establish criminal liability, and both must generally coincide.
Omission liability requires a recognized duty.
Alternative Names:
Guilty Act|Criminal Act
Why it Matters?
Omission liability requiring a legal duty parallels the civil negligence requirement that a duty precede any failure to act, which is why both analyses begin with whether a relationship or statute imposed the obligation. In regulatory enforcement contexts the concept clarifies that failure to comply requires an affirmative obligation rather than merely an outcome the regulator disfavors.
Frequently Confused with
Related terms
Frequently asked questions
When does omission create liability?
Must the act and mental state coincide?





