The Australian Federal Police has confirmed that it executed search warrants last night on the offices of Labor senator and former communications minister Stephen Conroy, as well as the home of Andy Byrne, a Labor staffer for opposition communications spokesman Jason Clare.

The raids are part of an investigation concerning "allegations of the unauthorised disclosure of Commonwealth information" which contained documents showing the overblown state of the budget and lagging schedule for the NBN, and were prompted after a referral from the National Broadband Network Company on 9 December 2015, since which time there has been an "ongoing investigation".