The head of Parliamentary Service has resigned but could still be summoned to a privileges committee inquiry into how the phone records and swipe-card movements of a journalist were released.
The office of Speaker David Carter said it was up to the privileges committee to decide whether it would force Geoff Thorn to appear.
Mr Thorn quit his $320,000 job yesterday after revelations the service gave Dominion Post reporter Andrea Vance's phone records - as well as her swipe-card movement details - to an inquiry.
A Datacom contractor gave the records to David Henry's inquiry into the leak of Rebecca Kitteridge's GCSB compliance report.
The service also provided incorrect answers to written questions from Mr Carter over whether the records were sought.