aid and abet | Definition

Doc's CJ Glossary by Adam J. McKee
Course: Criminal Law

In criminal law, to aid and abet means to assist another person in the commission of a crime.


In criminal law, the term aid and abet refers to the act of assisting or encouraging another person to commit a crime. The concept of aiding and abetting is crucial in criminal law because it expands the scope of liability beyond the person who actually commits the crime. By holding individuals accountable for aiding and abetting criminal behavior, the law can deter people from participating in criminal activities and can help to ensure that justice is served.

To be convicted of this crime, an individual must have knowingly and intentionally assisted or encouraged another person to commit a crime. This assistance can take many forms, such as providing weapons or other resources, driving a getaway car, or simply providing encouragement or support for criminal activity.

The act of aiding and abetting can be prosecuted as a separate offense from the underlying crime. This means that an individual can be charged with both the underlying crime and aiding and abetting the crime. For example, if two individuals rob a bank together, both individuals can be charged with robbery and aiding and abetting the other’s criminal conduct.

The consequences of this can be severe. In some cases, an individual who does this can face the same penalties as the person who actually commits the crime. This means that an individual who provides assistance in a murder case, for example, can be charged with murder and face the same penalties as the person who pulled the trigger.

The concept is also important in determining the guilt or innocence of individuals who may not have directly participated in a crime but were aware of the criminal activity and failed to take action to prevent it. For example, if an individual is aware that a friend is planning to rob a store and does nothing to stop them or report the activity to the authorities, they may be charged with aiding and abetting the robbery.

Under the Model Penal Code (MPC), the concept of aiding and abetting is referred to as complicity. The MPC defines complicity as intentionally aiding or encouraging another person to commit a crime. Like the concept of aiding and abetting in traditional criminal law, complicity under the MPC expands the scope of liability beyond the person who actually commits the crime.


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Last Modified: 04/29/2023

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