He later denied he was the same person as the man charged with the assaults earlier this year, saying: "The capitalised entity that's on the charge documents is not me.''
However, Judge Aitken said she did not accept this.
Murphy was representing himself in court, after his legal aid lawyer Peter Eastwood withdrew from the case.
Judge Aitken said Murphy didn't consent to Mr Eastwood's representation, and cited a breakdown in relationships.
Murphy also insisted he wanted time to "gain the right legal advice from somebody that's going to listen to my arguments''.
He was granted a week to seek advice from a new lawyer, during which time police also have to file their formal written statements, which they have asked to amend.
Police publicly named Murphy as a person of interest while investigating an attack on a 74-year-old woman in Pakuranga in June. He was arrested after a pursuit on Auckland's Northern Motorway on June 24.