According to The National, he cited intelligence reports of an illegal training camp in Kupiano of PNG's Central province.
Namah claimed the force was using hired vehicles issued by the East Sepik provincial government.
East Sepik governor Peter Wararu reportedly told Parliament his government was only involved in the Supreme Court reference and did not fund any vehicles.
Namah reportedly said several members of the PNGDF had been arrested and detained in military cells while others in the police would be "locked up shortly".
After promised investigations, Namah reportedly plans to arrest political leaders behind the mysterious training camp.
Disturbingly, all of these claims from Namah followed questions by Middle Ramu MP Ben Sembri over the shocking attack on a Port Moresby police highway patrol by Highlands police officers in the capital.
Namah reportedly said the deployment of Highlands police in Port Moresby was for "national security".
Pangu Pati party leader Andrew Kumbakor reportedly said Namah was telling lies.
"He [Namah] is the one hiring many unmarked police vehicles and creating divisions and corrupting the police and military because he has money and political power," Kumbakor reportedly said.