## Facts

- Coleman Hawkins, an American musician admitted to the United Kingdom subject to a condition that he take no employment, paid or unpaid, performed at a London concert in breach of that condition.
- Herbert William Wilcox, proprietor and editor of *Jazz Illustrated*, knew Hawkins was arriving and went to the airport to report the arrival for his magazine.
- Concert organizers staged a performance at the Princes Theatre, London, at which Hawkins played saxophone.
- Wilcox purchased a ticket and attended as a paying spectator, knowing the performance was unlawful under the Aliens Order 1920.
- There was no evidence Wilcox applauded or protested during the performance.
- After the event, Wilcox published a fully illustrated, highly favorable article describing the concert.
- Wilcox was convicted by a magistrate of unlawfully aiding and abetting Hawkins’s contravention of the Aliens Order 1920 and appealed by case stated.

## Issues

1. Whether a person can aid and abet an offence by knowingly attending an unlawful event as a paying spectator, where the attendance amounts to encouragement.
2. Whether subsequent favorable publicity for the unlawful act can be evidence of aiding and abetting, even without organizing the event or communicating encouragement directly to the principal.

## Decision

- The King’s Bench Division dismissed the appeal and upheld Wilcox’s conviction.
- The court held there was evidence on which the magistrate could properly find that Wilcox aided and abetted Hawkins’s unlawful performance.
- Wilcox’s knowing, paid presence at the concert, coupled with his conduct in publicizing and praising the event, supported an inference of encouragement.
- The court treated the question as one of evidential sufficiency for the magistrate’s finding, not a re-determination of the facts.

## Legal Principles

- Aiding and abetting may be established by conduct that intentionally or knowingly encourages or supports the commission of an offence.
- Mere presence at the scene is not automatically enough; however, voluntary presence with knowledge, where the circumstances show “countenance” or encouragement, can constitute aiding and abetting.
- Encouragement need not be addressed directly to the principal offender; it may be inferred from conduct that supports the unlawful act’s success (including paid attendance that contributes to commercial viability).
- Post-event conduct, such as publishing favorable publicity, can be relevant evidence of encouragement when combined with knowledge and attendance.

## Conclusion

The court affirmed that accessory liability may rest on knowing attendance and related conduct that encourages an unlawful act, even where the alleged accessory neither organized the event nor expressly urged the principal to commit the offence.


Wilcox v. Jeffery, [1951] 1 All E.R. 464 (K.B.D.)