The Police Association in Papua New Guinea is calling for a government review into the leadership of the constabulary.
The call comes after a number of high profile incidents involving misconduct including the alleged police killing of two betel nut vendors that sparked a week of protests.
Association General Secretary Clemence Kanau says the blame lies with the leadership of the force.
Mr Kanau says many of the senior management are past their best.
"Men and women who have served the PNG Constabulary for more than 30 or 40 years, some who are responsible for the administration and management. Most of them are already past their retirement age. We believe the force has many young, professional officers who can easily fit into taking responsibility."
Mr Kanau says fresh new leadership would reinvigorate the force.