Amnesty International has urged the new Queensland government to look at the evidence on how to best address youth offending after the LNP was elected on a "tough on youth crime" platform.

Amnesty International Australia's Indigenous Rights campaigner Kacey Teerman said on Monday the human rights group calls on the new premier, David Crisafulli, to listen to "every expert in this field" who say "imprisoning children only increases offending and harms these kids, their families and communities".

Amnesty noted that all expert, longitudinal evidence produced in Australia demonstrates how punitive, carceral responses to youth offending does not reduce rates of recidivism to make communities safer.

Instead, findings from investigative and research-based inquiries into youth offending, including Victoria's Inquiry into Youth Detention Centres, the Disability Royal Commission and the recent Help Way Earlier! report from the National Children's Commissioner, show criminalisation and incarceration of children serves to exacerbate the impacts of trauma and alienation that can lead to offending - making the community less safe.

Ms Teerman said that despite populist rhetoric to the contrary, "imprisoning children and treating them as adults in the justice system has never been shown to make communities safer or reduce crime rates".

"Amnesty International Australia calls on the incoming LNP government to actually look at what works, discard what doesn't, and to ensure any youth justice policies they enact do not breach human rights," she said.

Amnesty noted that the LNP's adult crime, adult time philosophy - if put into effect - would put Queensland in violation of international human rights standards, including Convention on the Rights of the Child, to which Australia is a signatory, which says that children should only ever be incarcerated as an absolute last resort and for the shortest time possible.

Australia has repeatedly faced international scrutiny for failing to uphold this standard, and Queensland's proposed policies would "deepen this non-compliance", Amnesty warned.

"Queensland has an obligation to protect children's rights, which includes prioritising their rehabilitation and supporting their development through safe, community-based alternatives," said Ms Teerman.

Amnesty urged the Queensland government to raise the age of criminal responsibility to 14 years old, end the practice of detaining children in adult watch houses, and to fully fund the Indigenous-led diversionary programs that have been proven to work.

Two 13-year-old Indigenous children were kept in adult Queensland watch houses for 26 and 25 days respectively, submissions from the youth justice inquiry recently revealed.

Amnesty International also joined a number of justice and rights groups, including the Australian Human Rights Commission, the Australian National Preventive Mechanism, and Aboriginal Legal Service WA, in urgently calling for a federal approach to Australia's youth justice system that adheres to Australia's obligations under international law and protects the rights of children in police and prison custody.

Queensland Labor, now in opposition, has said it will not oppose the LNP's "adult crime, adult time" approach.