Ms Emmerson was fired in 2015 for writing prescriptions for a controlled drug but a DHB spokesman refuted Ms Emmerson's version of events.
Kim Tito, general manager of Maori Health and Mental Health and Addiction Services, said that in prescribing controlled drugs to someone who was not a patient for over a year, the doctor had "failed to meet her professional responsibility to understand the guidance provided both in Cole's Good Medical Practice and in the Medical Council Standards".
Ms Emmerson misappropriated hospital property when she knew, or ought to have known, the use of hospital scripts was not for administering drugs to non-patients who were relations, he said.
"Dr Emmerson [has] breached the actual and implied terms of her employment which require her to conduct herself in the best interests of the Northland DHB."
In response to allegations of bullying, Mr Tito said that when a relationship between a registrar and senior clinician was not good there were avenues to resolve the situation.
The hearing over Ms Emmerson's complaint of unjustified dismissal started on January 26 and was expected to take up to seven days.
It was adjourned on the fourth day so the parties could resume mediation.
A date for mediation has not yet been set.
