An Auckland architect convicted of stealing trade secrets appears to be just one of only two people ever found guilty of industrial espionage in New Zealand, Weekend Herald investigations reveal.

Ministry of Justice records released to the Weekend Herald under the Official Information Act show five previous prosecutions over allegations of trade secrets thefts.

But, just one earlier case has ever been proven and resulted in a conviction.

That Auckland case saw a term of imprisonment imposed in September 2004, the ministry's archives show.

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In would not be until this year that a second person, Michael Davies , would be

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