The ICAC, during the course of Operation Dasha, intercepted a series of telephone calls that resulted in a separate inquiry (Operation Keppel) into the conduct of Maguire. Specifically, the ICAC sought to inquire whether, between 2012 and 2018, Maguire engaged in conduct that involved a breach of public trust by using his public office, involving his duties as a Member of Parliament, as a Parliamentary Secretary, and as Chair of the NSW Parliament Asia Pacific Friendship Group to improperly gain a benefit for himself and/or entities close to him. Appearing before the ICAC on 14 October 2020, Maguire admitted that he used his position as an Member of Parliament and as a Parliamentary Secretary to make money for himself and his associates. Appearing before the same ICAC inquiry, Gladys Berejiklian, the Premier of New South Wales, agreed that she had been in a "close personal relationship" with Maguire from 2015 until August 2020. As of 18 December 2020 Operation Keppel is ongoing.