Director of Public Prosecutions Tim Ellis has been found guilty of causing the death of Launceston woman Natalia Pearn by negligent driving.

On March 24, last year, Ellis' was driving in the wrong lane of the Midland Highway when he crashed head-on with Miss Pearn's Toyota Corolla.

In October, Ellis pleaded not guilty to the charge of causing death by negligent driving.

During the trial, the Prosecution alleged Mr Ellis was driving in the wrong lane for up to one kilometre, or 26 seconds, before he collided with Miss Pearn, and his act of driving was "conscious and voluntary".

Ellis' defence team argued Ellis could have been half asleep which would not be considered conscious.

Miss Pearn's father Alan and sister Keli were in the Hobart Magistrate's Court this afternoon to hear the decision.

Ellis was suspended from the DPP's office on full pay when he pleaded not guilty.

His defence team has said that it will appeal the verdict.