American Robert Caldwell was found guilty of aiding and abetting the illegal transport of defence articles and served 20 months in prison.

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American Robert Caldwell was also found guilty of aiding and abetting the illegal transport of defence articles and served 20 months in prison.

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The officials' defence was that taking commissions was not illegal under Swiss law at the time.

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Defence lawyers in America say the imports may have been illegal.

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Defence counsel said the men hadn't been charged with membership of illegal organisations and hadn't attempted to resist arrest.

BBC: Northern Ireland