Ms Pirini asked if executors should continue to have this power and whether the court decision adequately dealt with tikanga in modern New Zealand.
Hohepa Rudolph said an executor dealt with individuals, while with Maori the dead belonged to their iwi and burial decisions were made on their marae.
Louisa Collier described a 24-year dispute over the burial of her brother Joseph Malcolm at Whangaroa. A kaumatua there said his children would lose rights to land if the body was moved.
Takangaroa Moanaroa said Maori who died overseas were, because of cost, returning in jars, not boxes, and ashes were not allowed in urupa.
Te Ihi Tito said the bigger the fight over an individual's burial, the more mana for that person. It had to be sorted out on marae, he said, warning: "Don't try and change things that have been there for centuries."
Te Wahiri Hetaraka said non-Maori should be educated against spreading cremation ashes.
Ray Oldfield said undertakers could inform families about local customs before cremation and it was suggested tikanga instruction be mandatory before migrants were granted citizenship.
Submissions were encouraged before December 20. The commission is expected to report to Parliament next year.
Public submissions can be made at www.lawcom.govt.nz