Tuesday marks one year since the tragic death of Reza Barati, a refugee in the care of the Australian Government.
"A year on and we still have no answers and a government that refuses to accept any responsibility for the death of a refugee in its care," Greens Leader Christine Milne said.
"People imprisoned on Manus Island continue to suffer but Reza Barati paid the ultimate price for the Coalition's cruel policy encapsulated in the election slogan to 'stop the boats'.
"One year after Reza Barati's death, the Abbott government continues to shame the nation by acting in breach of human rights international law and common human decency."
Greens immigration spokesperson Senator Sarah Hanson Young said:
"The government's culture of cover-up and secrecy means there has been no justice for the Barati family.
"The situation on Manus is as toxic as it has ever been and no amount of government denial will change that.
"It's time the media were allowed into the Manus Island camp so that the Australian people can finally see what is being done in their names," Senator Hanson-Young said.
The Greens have renewed calls for the government to urgently accept the recommendations of the Senate Inquiry into the tragic events of February 2014.