A New Zealand reporter covering the Chris Cairns trial in London was arrested for filming in a prohibited area overnight.
3 News' Tova O'Brien was arrested for using a GoPro camera within the precinct of Southwark Crown Court, a MediaWorks spokeswoman said today.
There are two signs at the entrance to the court banning the use of cameras past a certain point.
The spokeswoman said O'Brien was given a caution before resuming reporting on the trial.
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"Our coverage of the Chris Cairns trial has not been affected," she said.
Cairns is standing trial on charges of perjury and perverting the course of justice.
Three former teammates - Lou Vincent, Brendon McCullum, and Shane Bond - have already been called as Crown witnesses.