Ms Matich was told by doctors she had exhausted all treatment options and her daughter had only months to live when she began researching medicinal marijuana.
She is a scientist, having studied horticulture, science and technology at university.
Ms Matich consulted botanists, pharmacologists and chemists about cannabis oil treatment and the method used to produce it. The results had been "spectacular".
"I got my daughter back. She was happy, she was talking and even cracking jokes."
However, when the oil tester lost his job the oil was no longer able to be supplied safely.
She told Hawke's Bay Today that she was not just using "hash in the kitchen", but the medicine was expertly handled and researched. She wants to understand why her daughter responded to the treatment and get the laws changed around the regulation of cannabis oil for medicinal use.
"Wouldn't it be wonderful if it was available to those who need it?" she said.
"We are not a free-the-weed group, quite the opposite."
