ORS 161.155: Criminal liability for conduct of another.

A person is criminally liable for the conduct of another person constituting a crime if:

      (1) The person is made criminally liable by the statute defining the crime; or

      (2) With the intent to promote or facilitate the commission of the crime the person:

      (a) Solicits or commands such other person to commit the crime; or

      (b) Aids or abets or agrees or attempts to aid or abet such other person in planning or committing the crime; or

      (c) Having a legal duty to prevent the commission of the crime, fails to make an effort the person is legally required to make.