An Australian expert has questioned the Coalition's much-lauded boat turn-back policy, saying it creates new dangers and spreads problems to our international neighbours.

The policy to turn back vessels carrying irregular migrants – most of which are asylum-seekers – was reintroduced by the Federal Government in December 2013.

Since then, at least 16 vessels have been returned to Indonesia or Sri Lanka.

But research by the University of Queensland’s Migrant Smuggling Working Group shows that Australia’s policy to turn-back boats does not do much to combat migrant smuggling.

In the quest for these dubious results, the policy puts Australians at risk, violates international obligations and jeopardises the fragile relationship with Indonesia.

“The execution of the ‘turn-backs’ has placed passengers and crew on board the vessels, as well as Australian Navy and Customs personnel, at risk of serious injury and death, especially if the vessels are not seaworthy or are sabotaged by desperate migrants,” Professor of Criminal Law Dr Andreas Schloenhardt said.

“One of the main effects of the turn-back policy has been a shifting of Australian responsibilities to other countries and a rejection of Australia’s obligation under international refugee law.”

Dr Schloenhardt said the policy had not addressed the causes of migrant smuggling and had placed a greater burden on transit countries such as Indonesia.

“Asylum seekers bound for Australia instead remain in, or are returned to, countries where they have no permanent status, where they may have to live in hiding, and where the persecuted face a real risk of being returned to their persecutors,” he said.

“The policy has only achieved one of its objectives: that is, to prevent irregular migrants, most of whom seek asylum, from arriving in Australia.

“Returning vessels carrying asylum seekers from Australia has severely damaged Australia’s already poor human rights record relating to asylum seekers and has tarnished Australia’s image.

“It has effectively rendered Australia’s signature of the Refugee Convention meaningless.”

The research, titled Turning Back the Boats: Australia’s Interdiction of Irregular Migrants at Sea, will appear in a future edition of the International Journal of Refugee Law.