What is Actus Reus?

Legal Definition
Actus reus (/ˈæktəs ˈrɪəs/), sometimes called the external element or the objective element of a crime, is the Latin term for the "guilty act" which, when proved beyond a reasonable doubt in combination with the mens rea, "guilty mind", produces criminal liability in the common law-based criminal law jurisdictions of Canada, Australia, India, Pakistan, South Africa, New Zealand, Scotland England and Wales, Colombia, Nigeria, Ghana, Ireland, Israel and the United States of America. In the United States of America, some crimes also require proof of an attendant circumstance.
-- Wikipedia
Legal Definition
The act or omissions that comprise the physical elements of a crime as required by statute. See, e.g. Schad v. Arizona, 501 U.S. 624 (1991).

The statutory definition of a crime pairs Actus Reus with Mens rea, the psychological state defining a criminal perpetrator as culpable for having committed a crime.

See criminal law
Legal Definition
Latin phrase for a criminal act.