Queensland activist Ben Pennings ordered to hand over his files on Adani

Pennings required to compile information he has about Carmichael coalmine and various campaigns

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A Brisbane activist whose family was secretly surveilled by Adani's private investigators has agreed to hand his phone and computer over to the mining giant as it seeks to prove its claims he misused'' confidential information.

Following a court order, Ben Pennings told Guardian Australia he would reluctantly allow" a forensic IT expert to trawl through his data, as he seeks to have Adani drop its multimillion-dollar damages claims against him over his campaigning against its Carmichael coalmine.

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