Revelations that ballot papers in the national vote that installed Bill Shorten as federal Labor leader were diverted to the address of an accused branch stacker are set to be raised at the powerful NSW ALP administrative committee.

It is understood concerns about the integrity of the ballot process will be discussed in light of next months' vote to decide the next Labor Party national president.

Sam Dastyari: "I wasn't aware of it." Credit:Eddie Jim

In February, Fairfax Media revealed that an internal ALP tribunal found the mailing addresses for 50 ballot papers in the 2013 leadership ballot between Mr Shorten and Anthony Albanese were altered by NSW Labor head office.

It said this was done at the request of Michael Buckland, then a staff member of Labor Senator Sam Dastyari – a key member of the NSW Labor right faction that supported Mr Shorten in the ballot.