Mens rea is a technical term, generally taken to mean some blameworthy mental condition, the absence of which on any particular occasion negatives the condition of crime. It is one of the essential ingredients of criminal liability.’ A criminal offence is committed only when an act, which is forbidden by law, is done voluntarily. The term mens rea has been given to the volition, which is the motive force behind the crinjinal act.2 An act becomes criminal only when it is done with guilty mind. Ordinarily, a crime is not committed, if, the mind of the person doing the act is innocent. There must be some blameworthy condition of mind (mens rea) before a person is made criminally liable. For instance, causing injury to an assailant in private defence is no crime but the moment injury is caused with intent to take revenge, the act becomes criminal. However, the requisite guilty state of mind varies from crime to crime. What is an evil intent for one kind of offence may not be so for another kind. For instance, in the case of murder, it is the intent to cause death; in the case of theft, an intention to steal; in the case of rape, an intention to have forcible sexual connection with a woman without her consent; in the case of receiving stolen property, knowledge that the goods were stolen, and in the case of homicide by rash and negligent act, recklessness or negligence.
The underlying principle of the doctrine of mens rea is expressed in the familiar Latin maxim actus non facit reum nisi mens sit rea—the act does not make one guilty unless the mind is also guilty. The mere commission of a criminal act (or bringing about the state of affairs that the law provides against) is not enough to constitute a crime, at any rate in the case of the more serious crimes. These generally require, in addition, some element of wrongful intent or other fault.
MENS REA
General Principles
PTA
The following illustration is given to enable better understanding of the