"It was a really cool ceremony. About 40 people turned up and they did a pohiri for me."
She enjoyed having the occasion in Rotorua because people at the ceremony knew her and her late father, who was a Maori Presbyterian minister.
"Dad's passing was really devastating for the whole family. He had worked so hard for his law degree and was so close to finishing. He was the leader of our family," she said.
Living up to her dad's legacy meant she completed the four-year degree in three years.
She also had a baby while studying.
"My daughter was born just before the the last exams and it was a tough time but my partner, Manu, was amazing," she said.
Miss Lewis worked as a court registrar prior to embarking on her studies, and her experience there made her want to work in family or criminal law, which she is looking forward to doing.