What is 'accomplice liability'?

Accomplice liability refers to the legal doctrine that holds individuals accountable for a crime if they assist or aid another person in committing that crime. This includes any actions that contribute to the planning, execution, or attempted commission of an offense. The principle behind this liability is that individuals who play a role in facilitating or encouraging criminal behavior share responsibility for the resulting crime, regardless of whether they were the primary perpetrator.

In the context of the other choices, merely being present during the crime does not constitute accomplice liability, as there must be a tangible contribution to the crime for liability to apply. Similarly, witnessing a crime or reporting it afterward does not involve active participation in the criminal act, which is a key component of accomplice liability. Thus, the correct answer captures the essence of someone who is involved in the crime beyond just being an observer or bystander.