A man who made explosive allegations about a cash-for-visas scandal in Australia’s immigration detention centres has more evidence of corruption in the visa system, but says he has not been able to hand it over to investigators as he hasn’t heard from them in the 10 months since he went public.

Nauroze Anees, a 32-year-old Pakistani citizen who has been in Australia since 2007, is currently detained at Sydney’s Villawood detention centre. He has been in detention since 2016.

In a blog post published in February 2019, Anees claimed a fellow detainee had bragged to him that he had a connection who could free immigration detainees for $80,000. The bribery allegations were reported by Nine (formerly Fairfax) newspapers shortly after he published the blog, and an investigation was launched.

Anees says he now has further evidence suggesting other detainees have been offered the chance to pay significant sums to have their visas reinstated, with the promise of release within four to five weeks.

The evidence suggests a detainee who had been convicted of serious criminal offences had been offered the chance to pay a $50,000 bribe to secure his release. BuzzFeed News has reviewed the evidence and is not publishing further details for legal reasons.