Governor-General Sir Michael Ogio officiated at the swearing in ceremony, which was attended by Chief Justice Sir Salamo Injia and senior judges.
Foulds, 67, was appointed on Oct 31 to serve for three years.
Attorney-General and chairman of the judicial appointments committee Ano Pala said the appointment would strengthen the judiciary’s capacity to deal with the growing backlog of pending cases.
Foulds studied law at the University of Western Australia and was admitted as a barrister and solicitor of the Supreme Court of the Australian Capital Territory and all Federal Courts in 1975.
He was admitted as a Solicitor of the Supreme Court of Queensland in 1980 and in 1981 was admitted as a barrister and solicitor of the Supreme Court of Tasmania.
Foulds has worked in a number of Australian government and justice agencies since 1971.
He has extensive experience appearing before tribunals and court cases in the Supreme Court of Tasmania.
From 1991 to 1994 he served as the crown solicitor in the Norfolk Islands.
At the time of his appointment Foulds was the principal/senior crown counsel, civil litigation in the office of the Director of Public Prosecutions and the Solicitor General’s Litigation Division in Hobart, Tasmania. The National/ONEPNG