David L. Winslow and Wisconsin Physicians Service (plaintiffs) appeal a summary judgment dismissing their personal injury claims against Brian A. Brown, Dennis D. Coldren, Michael G. Lee, and Home Mutual Insurance Company (defendants). The plaintiffs seek damages for injuries caused when the automobile in which the defendants were passengers struck Winslow. Winslow was riding a bicycle on a trail exclusively reserved for bicycle use. The plaintiffs allege that the defendants: (1) conspired with the driver of the automobile to operate on the bicycle trail; (2) aided and abetted the driver’s tortious conduct; and (3) negligently failed to maintain a lookout for bicyclists. Because the parties’ affidavits 1 do not allege or reasonably infer that the defendants encouraged, advised or assisted the driver of the automobile to operate on the bicycle trail, summary judgment on the conspiracy and aiding and abetting claims was appropriate. Because the affidavits do not allege or reasonably infer that the defendants were actively negli *330 gent, summary judgment on the negligence claim also was appropriate. We therefore affirm the judgment.
CIVIL CONSPIRACY
A civil conspiracy is the combination of two or more persons by concerted action to accomplish an unlawful purpose or to accomplish by unlawful means a purpose not in itself unlawful.
Onderdonk v. Lamb,
We must determine the nature of participation in an illegal plan required to impose joint liability for acts done in furtherance of the plan. The parties’ affidavits raise only an inference that the defendants knowingly agreed to be passengers in the automobile while operated on the bicycle trail. The affidavits do not allege or reasonably infer that the defendants advised or assisted the driver, or that they expressly encouraged him. Although their passenger status did not directly further the act of driving on the bicycle trail, we must determine whether their alleged willing accompaniment on the trip constituted concerted activity. We also must determine whether their willing accompaniment constituted actionable encouragement of the plan.
*331
The mere knowledge, acquiescence or approval of a plan, without cooperation or agreement to cooperate, is not enough to make a person a party to a conspiracy.
American Security Benevolent Association, Inc. v. District Court,
Our conclusion is supported by the rule that generally no duty exists to protect others from hazardous situations.
DeBauche v. Knott,
No facts support the plaintiffs’ allegation that the defendants intentionally encouraged operation of the automobile on the bicycle path. Encouragement or in
*332
citement constitute acts furthering- an illegal plan.
Hilmes v. Stroebel,
We acknowledge that a defendant’s presence at the scene of a crime may support an inference of involvement in a conspiracy.
See State v. Charbarneau,
Finally, even if accompanying a driver on an illegal trip constitutes encouragement, liability should not be imposed as a matter of law solely on that basis. Whether liability should be imposed in a given situation is a question of law.
See Walker v. Bignell,
Our conclusion is supported by the distinction consistently recognized by our supreme court between active and passive negligence in automobile accidents. Only active negligence constitutes a cause of an accident for which liability may be imposed on a passenger.
Del
*333
more v. American Family Mutual Insurance Co.,
We conclude that the circuit court properly granted summary judgment dismissing the conspiracy claim. Summary judgment is appropriate when there is no disputed issue of material fact and the moving party is entitled to judgment as a matter of law. Section 802.08(2), Stats. Because the parties’ affidavits do not allege or reasonably infer that the defendants actively encouraged, advised, or assisted the illegal plan to drive an automobile on a bicycle trail, the defendants were entitled to judgment as a matter of law.
AIDING AND ABETTING
The parties dispute whether Wisconsin recognizes liability for aiding and abetting a negligent act. The
*334
plaintiffs contend that
Fredrickson v. Rabat,
In
Fredrickson,
our supreme court stated that a bystander at the commission of an assault and battery was not a participant merely because he did not interfere.
Id.
at 446,
The elements of aiding and abetting in a civil action have not been addressed specifically in any Wisconsin appellate decision.
Fredrickson
and
Rhinehart v. Whitehead,
Applying the criminal law test of aiding and abetting to a civil action is consistent with the test in the Restatement (Second) Law of Torts § 876(b) (1979). In a criminal case, the elements of aiding and abetting are: (1) The person undertakes conduct that as a matter of objective fact aids another person in the commission of a crime; and (2) the person consciously
*336
desires or intends that his conduct will yield such assistance.
Frankovis v. State,
We consider the criminal law test of aiding and abetting preferable to the Restatement formulation. It is a test with which lawyers and courts are familiar and it promotes consistency of language in describing similar concepts. We therefore conclude that a person is liable in a civil action for aiding and abetting if: (1) The person undertakes conduct that as a matter of objective fact aids another in the commission of an unlawful act; and (2) the person consciously desires or intends that his conduct will yield such assistance.
The circuit court properly granted summary judgment dismissing the aiding and abetting claim because there is no disputed issue of material fact and the defendants are entitled to judgment as a matter of law. Section 802.08(2), Stats. The plaintiffs’ affidavit only raises an inference that the defendants knowingly agreed to accompany the driver of the automobile on the bicycle trail. This is insufficient to prove as a matter of objective fact that the defendants assisted the unlawful conduct. Mere presence, with no effort to prevent unlawful conduct, is not aiding and abetting unless an
*337
intent to assist is communicated.
Harrington v. Collins,
NEGLIGENT LOOKOUT
The plaintiffs acknowledge the general rule that a passenger is not liable for negligent lookout unless he assumed that part of the driver’s responsibilities prior to an accident.
See Hoeft v. Dutches,
*338 Summary judgment dismissing the negligent lookout claim was proper because there is no disputed issue of material fact and the defendants are entitled to judgment as a matter of law. Section 802.08(2), Stats. The affidavits do not reasonably infer that the defendants assumed the driver’s responsibility of lookout. The plaintiffs’ affidavit alleges only that the reason for driving on the bicycle trail was to search for the driver’s lost wallet. This allegation is insufficient to infer that the defendants agreed to be responsible for the safe operation of the automobile. The duty of lookout is constant when assumed, while the agreement to look for the wallet could be abandoned at will. The alleged agreement to look for the wallet, therefore, does not imply an agreement to assume lookout responsibility. Because the affidavits do not reasonably infer active negligence by the defendant passengers, the defendants are entitled to judgment as a matter of law.
By the Court. — Judgment affirmed.
Notes
Because we affirm the judgment on its merits, we do not address the defendants’ claim that the plaintiffs’ affidavit is defective.
Liability for accidents caused by intoxicated minors also has been limited to active negligence causing the intoxication.
See Sorensen v. Jarvis,
In
Rhinehart v. Whitehead,
*335 As to the rule of liability where several persons unite in an act which constitutes a wrong to another, intending at the time to commit it, or doing it under circumstances which fairly show them to be joint tort-feasors, the court gave the law substantially as laid down in Brown v. Perkins,1 Allen, 89 , which was cited with approval by this court in Hilmes v. Stroebel,59 Wis. 74 . That is to say, the court instructed that “any person who is present at the commission of an assault, or an assault and battery, by one person upon another, encouraging or inciting the same by words, gestures, looks, or signs, or who in any manner or by any means countenances or approves the same, is in law deemed an aider and abettor, and liable as principal; and evidence that a person is present at the commission of an assault and battery, without disapproving or opposing it, is evidence from which, in connection with other circumstances, the jury may infer that he assented thereto, and lent to it his countenance and approval, and was thereby aiding and abetting the same. But it is to be borne in mind that mere presence at the commission of an assault and battery or other wrongful act done, does not render a person liable as a participator therein.”
