It will be weeks before any decision is made and since there will be interruptions in the hearing, it's not expected to wind up until mid July.
Oland appeared very relaxed as he sat in the front row of the courtroom and before the proceedings began was sharing a laugh with family lawyer Bill Teed.
Derek Oland was sitting in the second row. When Oland was arrested back in the fall, the family released a statement asserting belief in his innocence.
A ban has been imposed on the broadcasting of any evidence.
