The chairman of Transparency International Papua New Guinea says the death of the Chief Ombudsman Chronox Manek after a long illness is a great loss for the country.
Mr Manek was in the position from 2008 and despite being shot in an assasination attempt on him in 2009, continued on in the job until last month when ill health sidelined him.
He conducted several investigations into high profile leaders including the former Prime Minister Sir Michael Somare who was outspoken in his criticism over the ombudsman's performance.
Transparency's Lawrence Stephens says Mr Manek was strongly committed to an important job which is made difficult due to a lack of resources.
"It's simply the nature of the fellow. He is such a well-liked person and it is quite a loss to everybody. A quiet person, relatively humble but very well known by many people and well liked by many. He'll be sorely missed."