The Bandidos and Hells Angels motorcycle gangs became involved in a territorial dispute in early 1994 in southern Sweden, and the conflict subsequently spread to other parts of Scandinavia and Finland.

The two groups encountered one another at Helsinki Airport and, according to police surveillance tapes, the four Hells Angels telephoned their clubhouse in Copenhagen and requested that a support team meet them upon their arrival in Denmark.

Motorcycle gang headquarters, many of which were situated in residential areas, received subsidies from this program and, following the Copenhagen Airport incident, these clubhouses became targets for attacks.

[9] The Danish government responded to the escalation in violence with anti-crime legislation, which resulted in increased powers for the police and longer prison sentences for many offences.

Police were able to intercept Brokside's telephone conversations with the acquitted Hells Angels members and recorded approximately twenty hours of audio evidence.

These conversations revealed that, shortly after the trial concluded, Brokside and some of the acquitted were awarded with the "Filthy Few" patch, which is given to Hells Angels members who have killed on behalf of the club.

[3] With new evidence obtained, state attorney Karsten Hjorth decided on 3 April 1997 to raise a new case against those found not guilty of partaking in the airport shooting.

[14] Hells Angels Oslo chapter president Torkjell "Rotta" Alsaker was found guilty of attempted murder in the shooting of Lars Harnes at Fornebu airport and was sentenced to three years in prison in November 1998.