"It is not accepted that he should have been remanded in custody and any longer period on remand will be challenged vigorously."
Tamaki believes in the "value of the rule of law" and is disappointed by those to "seek to silence him".
"It is a sad day for the freedom of all New Zealanders when people cannot gather and be heard in opposition to government policy when they believe it to be wrong and contrary to the good of the people," he said in the statement.
Tamaki said democracy has "taken another hit" and the New Zealand Bill of Rights Act has "lost any impact that those who drafted it dreamt it might have".
Tamaki is facing five active charges and was in court today for allegedly breaching his bail conditions.
He was dressed in black during the hearing, sitting in a white room. He remained motionless and expressionless throughout.
There have been allegations that Tamaki breached bail conditions by speaking at a January anti-vaccine rally in Christchurch which was attended by more than 100 people - more than allowed under the traffic light system.
As part of his bail conditions, Tamaki is not allowed to "organise or attend any protests in breach of any Covid-19 level requirement".
The 63-year-old has previously been charged three times over his attendance at Auckland Domain lockdown protests. He has pleaded not guilty to all charges, including allegations he violated the conditions of his bail.
Tamaki and his wife Hannah posted a Facebook live video this morning at their home, announcing he was about to be arrested.
Brian Tamaki said he was speaking up on behalf of businesses and other individuals who had been hurt or affected by vaccination mandates.
"People think I keep breaching my bail conditions, I've always said I'm not guilty," he said.
"For all of those who say 'book him, send him off to jail', you don't understand about why this has happened and I should never have been charged in the first place thank you."
And he said he may become the country's first political prisoner should he be jailed later today.
The livestream continued as Tamaki was arrested with supporters on a motorbike following the police car's journey to Mt Eden remand centre where he was greeted by more than 50 people, who blocked police entry to perform a haka.