Medeplegen

Medeplegen, literally "co-perpetration" in Dutch criminal law, refers to the participation of one or more persons in the commission of a crime together with the primary offender. It covers acts in planning or execution where the participant intends that the offense will be carried out and contributes in a meaningful way, such as by providing information, equipment, or assistance, or by taking part in the execution of the crime. The key requirement is deliberate, knowing involvement in the crime, not merely association or passive presence.

The form of liability is distinct from instigation (uitlokking), where one person deliberately incites another to commit a crime, and from accomplice liability (medeplichtigheid), which generally concerns aiding or facilitating the crime without taking part in the principal act.

In practice, courts assess the actor's role, the degree of involvement, and the intent to determine the appropriate liability; more central participation can lead to penalties similar to those faced by the principal offender, whereas more peripheral assistance might yield lesser penalties.

Examples include jointly planning a burglary and sharing the tasks, supplying tools, or acting as a lookout or driver in the course of the crime.

Each case depends on the specifics of the act and the applicable legal provisions of the jurisdiction. In Dutch law, medeplegen is a standard category for attributing criminal liability to those who contribute to a crime beyond mere presence, ensuring that all substantive contributors can be held responsible for the offense.