Saad, who began a provisional suspension in August after failing a post-match drug test in July, is facing a maximum two-year penalty for his actions.
The hearing at 5pm on Wednesday, which was held in camera, was chaired by AFL Tribunal chairman David Jones.
A penalty was not handed down immediately after the hearing, with Saad likely to learn his fate in three to four weeks. Details of the hearing are expected to be released at that time.
Jones was joined on the committee by Dr Susan White, a sports physician from the Australian Sports Drug Medical Advisory Committee, and former player Wayne Henwood, who is a member of the AFL Tribunal panel.
Saad consumed a substance registered on the AFL's anti-doping banned list, believed to be a stimulant contained in the Viking Protein sports drink, 'Before Battle'.
Saad has previously been linked to Viking Protein in an ambassadorial role.
His legal team was hopeful of an outcome for his actions with a sanction less than the maximum penalty.
The 24-year-old is contracted, having signed a two-year extension in March this year, however a maximum penalty would likely end his AFL career.
It remains unclear what stance the Saints will take on Saad if he is suspended by the Tribunal.