He was accompanied at the police station by high-profile former "jailhouse lawyer" Arthur Taylor.
Taylor said he knew Bryant prior to him going on the run, as he had helped Taylor build his website.
Bryant later contacted him and said he wanted to hand himself in because he was worried that police had labelled him as dangerous.
Bryant faces charges of wounding with reckless disregard and possession of a knife, from an incident at Dunedin on April 7 this year, and three charges of harmful digital communication, from 2018 and 2019.