Nathan Scott Davidson, who was sentenced to four years' jail for drug trafficking, said he attended the Supreme Court over 100 times in the four years he was on bail.

Davidson was found guilty of trafficking ice, cannabis, morphine and Ritalin in 2014 by a jury in March last year.

The Court of Criminal Appeal heard Davidson would have to attend the court as often as twice a week whilst on bail and that his trial was back-stopped two to three times.

The appellant said the trial delay had an impact on his personal situation, including the fact he had two children in that period.

Davidson also appealed his sentence on the ground it was manifestly excessive.

"Maybe the amount of time I was on bail wasn't taking into account," he said.

Crown Prosecutor Peter Sherriff said the trial was in part delayed because Davidson's defence did not provide concessions in terms of agreed facts, which would have indicated the length of the trial earlier thus making it easier to list during sitting weeks.

Mr Sherriff said there was also a second trial involving Davidson and a co-accused that was listed first, approximately two years after Davidson was bailed on the trafficking charge, due to the fact there were two accused involved.

Justice Helen Wood said the court would reserve its decision on the appeal, however, she assured Davidson the matter would receive "early attention" due to his concerns on timeliness.