Aiding and abetting is a legal term that refers to the crime of helping someone commit a crime, either by providing assistance or by encouraging them to commit it. It is also known as "accessory" or "accessory to crime" in some jurisdictions. Aiding and abetting can include providing assistance in a variety of ways, such as providing material or financial assistance, offering advice or encouragement, or providing a place for the crime to be committed. There are two types of aiding and abetting: active and passive. Active aiding and abetting occurs when a person actively participates in the planning and execution of a crime. Passive aiding and abetting occurs when a person knows of a crime and does nothing to stop it or report it. In some jurisdictions, passive aiding and abetting is also known as "misprision of a felony".