The police in March declared Onwuka wanted after the attempted invasion of the Government House.
When reinforcement came, the BZM members had escaped by scaling the fence of the Radio House.
But the police chased and caught up with them, arresting the leader, Onwuka and 12 others.
He paraded the arrested members before the media.
“About 13 of them were arrested including the leader, Benjamin Igwe Onwuka,” the commissioner said.
Said he: “They had a CD Rom where the details of what they wanted to say are contained.
The police refused to allow the suspects to be interviewed by reporters.