The Wilkes/Gleditsch trial (Norwegian: Wilkes/Gleditsch-saken[1]) in 1982 in Norway, concerned publication of a report by two researchers of peace and conflict studies on electronic listening stations, based on information from open sources. Putting the information together to make a complete picture was deemed to reveal a secret, according to puslespill legal doctrine, cf the website of Norway's Cabinet in 2011.[2]
Electronic listening posts[3] in North-Norway, and their significance, was the secret that was revealed.[4] (The Wilkes/Gleditsch case has been confused[5] [6] with the "Loran C affair", which involved publication of the existence of a radiowave-transmitter used for navigation.[7])
Owen Wilkes and Nils Petter Gleditsch were convicted of breaching paragraphs 90 and 91 of Straffeloven, the Norwegian criminal code, pertaining to national security. They each received a suspended prison sentence, in addition to being fined and charged with court costs.
The trial has various other names in Norwegian, including "Gleditsch-saken", "Gleditsch/Wilkes-saken", and "kaninsaken" (the rabbit trial).
(From Website of Norway's Cabinet) "Det er anerkjent at hensynet til ytringsfriheten kan gjøre overtredelse av § 90 rettmessig, jf. Høyesteretts drøftelse av dette i listesaken, Sjue-saken og Wilkes/Gleditsch-saken." — From NOU 1999: 27, "6.3.2.3.1 Den ytre sikkerhet".