Oliver is an experienced general litigator and specialises in handling complex commercial litigation, and competition, regulatory and consumer law matters. 

Oliver advises on contentious and non-contentious aspects of competition, regulatory and consumer law.

He advises on mergers and acquisitions, restrictive trade practices, unilateral conduct and regulation. He advises clients in Commerce and Fair Trading Act investigations and with their interactions with the commercial regulators. He advises on front-end compliance and, in the consumer law area, has represented clients before the courts and before the Advertising Standards Complaints Board. 

In 2016, he advised the New Zealand Racing Board on its successful authorisation application to the NZCC to enter into an international commingling arrangement, and also represented Youi NZ Pty Limited and Trustpower Limited throughout Fair Trading Act investigations and prosecutions.  In 2017 he advised Wellington Electricity on its customised price path application to the NZCC.  

Chambers Asia Pacific (2018) describes Oliver as ‘a well-reputed competition and consumer law specialist, with one client praising his “expert strategic advice on engagement with competition and consumer regulators”’.