Nine other defendants denied the same two rioting and wounding offences in the same court on July 16 and eight elected trial by jury.
The nine defendants are Jesse Wiheti Fisher, 38, from Matapihi; Lake Kaimoana, 24, from Tauranga; Paul Frederick Carmichael, 44, of Brookfield, Teina Eremiha Matiaha, 35, of Mount Maunganui; William Grant Palmer, 42, from Matakana; Carlton Jon Paki, 36, from Pāpāmoa Beach, Tipene Guy Oti, 33, from Gate Pa; Maurice Te Barry Walker, 54, from Kairua; and Kereama Walker, 17, from Bethlehem.
Kereama Walker and Kaimoana also deny joint charges of aggravated robbery; Kaimoana is undecided whether to have a judge-alone trial or a jury trial.
The teen and Paki have also pleaded not guilty to charges of unlawful possession of an offensive weapon in a public place.
Judge Christina Cook further remanded Adam in custody for a case review hearing on September 15, along with the other defendants.
An 11th defendant - Te Koikoi Brown, 25, from Bethlehem - is yet to enter pleas to his four charges: rioting, wounding with intent to cause grievous bodily harm, aggravated robbery and possession of an offensive weapon in public.
Brown’s next court appearance is on August 3.