The Greens have today introduced into the Senate a bill to amend the Migration Act to restore judicial discretion to the courts in deciding sentences for convicted people smugglers.

"The Greens have tabled this bill because the government's much-hyped mantra of being tough on people smugglers is not working and is instead leading to injustice," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said.

"While people smuggling must be tackled, the government continues to punish only the little fish and never the kingpins that actually control the syndicates.

The Gillard government must make it a priority to move asylum seeker children and fragile families into the community, Greens Senator, Sarah Hanson-Young, said today.

"In October 2010 Minister Bowen said the government would move most children and vulnerable families out of detention, because their incarceration was harming their mental health and development," Sen. Hanson-Young said.

"This must be hastened this year because we know this damage is preventable by letting people live in the community after initial health and security checks are done.

Audio from Sarah's door stop in Canberra on referring the Greens' marriage equality bill to a Senate inquiry. Also joined by Alex Greenwich from Australian Marriage Equality and Shelley Argent from Parents and Friends of Lesbians and Gays. Other topics covered include childre in detention and sexism toward women politicians.

Audio from Sarah's door stop in the Senate courtyard. She spoke about making it a priority to release children and their families from detention centres, marriage equality legislation and sexism toward PM Gillard.

The Australian Greens have invited UNHCR High Commissioner, Antonio Guterres, to visit a detention centre when he's in the country this month to see conditions for himself.

"I've written to the High Commissioner explaining it is crucial he see first-hand how Australia's mandatory detention practices cause physical and mental health damage to children and adults," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said today.

Immigration Minister, Chris Bowen, as the legal guardian of unaccompanied children, should pay a visit to the Leonora detention centre to meet 160 children and young people who have been denied the chance to attend school, the Australian Greens said today.

"The Greens are concerned by reports that 160 children are languishing in the remote centre, away from class rooms and other vital services they need to integrate into Australian life should they be granted refugee status," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said.

Temporary protection visas (TPVs) offer no practical or long-term solution and only serve to punish very vulnerable refugees simply because they weren't lucky enough to arrive here by plane, the Australian Greens said today.

"The most damaging and cruel aspect of TPVs is they contain the constant threat that a person who has been recognised as a genuine refugee and fled danger may be returned to the source of their fear," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said.

Tony Abbott's proposal to use the navy to turn back every asylum seeker boat should his Coalition win the 2013 election is illegal and immoral, the Australian Greens said today.

"It breaks the law because it overrides Australia's international obligations under the Refugee Convention," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said today.

The Greens will next month table a bill in parliament to remove mandatory sentencing provisions from the Migration Act and restore judicial discretion to the courts in deciding sentences for convicted people smugglers.

"Nearly two years ago, the Greens and the legal community warned mandatory sentences would not punish the people smuggling kingpins, only the pawns," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said today.

The Greens support the call from former NSW attorney-general, John Dowd, for a judicial inquiry into the mandatory sentences imposed on asylum seeker boat crew who are convicted of people smuggling.

"We're pleased Mr Dowd has joined an expanding number of voices who find it unacceptable that Australia's courts must give five year sentences to impoverished Indonesians," Greens' immigration spokesperson, Sen. Sarah Hanson-Young, said today.

"The federal government knows where the faults are in the Migration Act and should urgently fix them.