TVNZ reporter Ruth Wynn-Williams was detained by police during the Gable Tostee murder trial verdict.

Wynn-Williams said a "cluster of detectives grabbed my phone" after she was suspected of live tweeting details of the case from court in Brisbane, in a case of mistaken identity.

"I was detained by police," Wynn-Williams told Hilary Barry on TVNZ's Breakfast show this morning.

"Just before I was about to go live to bring the verdict, police walked into my shot. I was apprehended by police."

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Wynn-Williams said there was heavy scrutiny by the judge on the actions of media yesterday, after some reporters revealed details of a juror's actions on social media that were supposed to be suppressed.

Wynn-Williams said "a blonde girl" was live tweeting from court. Because Wynn-Williams had to run from the court to broadcast her report for TVNZ, she was suspected of being that woman.

"It was quite an experience," said Wynn-Williams.