Australia

Tenants in one of Victoria’s newest community housing blocks say they have gone weeks without being able to flush their toilets and months without being able to get a signal for TV, while their concerns over cracks in the building have gone unaddressed.

The $140m development in Dunlop Avenue in Ascot Value is the first development to open from the government’s Public Housing Renewal Program – now known as the Big Housing Build – and was heralded as the “most advanced” social housing project in the state when it was completed in March last year.

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The estate was previously public housing, managed directly by the Victorian government. Since its redevelopment, the 200-dwelling complex offers only community housing managed by third-party not-for-profit provider Evolve and rent-controlled affordable housing.

But residents of the estate say they have had ongoing issues with the building management. One tenant says they have been served a notice to vacate twice in 12 months – and residents say their requests for maintenance are often ignored or take weeks to address.

The lives of detainees in Australia’s immigration detention centres are controlled by a secret rating system that is opaque and often riddled with errors, a Guardian investigation has found.

Developed by Serco, the company tasked with running Australia’s immigration detention network, the Security Risk Assessment Tool – or SRAT – is meant to determine whether someone is low, medium, high or extreme risk for factors such as escape or violence.

Detainees are also rated for an overall placement and escort risk – which may determine how they are treated while being transported, such as whether they are placed in handcuffs and where they stay inside a detention centre – but aren’t given the opportunity to challenge their rating, and typically are not even told it exists.

Immigration insiders, advocates and former detainees have told Guardian Australia the SRAT and similar algorithmic tools used in Australia’s immigration system are “abusive” and “unscientific”. Multiple government reports have found that assessments can be littered with inaccuracies – with devastating consequences.