The Australian senator who delivered last week’s bombshell allegations of pokies-tampering and money laundering at Crown Resorts has been prevented from airing new claims in parliament.

Independent Senator Andrew Wilkie made international headlines last week after tabling evidence in parliament from three former Crown Melbourne staffers who claimed management had ordered them to illegally tamper with video poker machines and to look the other way as the casino helped high-rollers avoid scrutiny of financial transactions.

Caught off guard, Crown originally managed only a sputtered denial of these claims but eventually challenged Wilkie to restate his evidence outside parliament, where his comments wouldn’t be protected by parliamentary privilege.

On Tuesday, News Corp Australia reported that Wilkie had addressed his fellow parliamentarians with claims that a fourth whistleblower had come forward – despite being “in fear for his life” – with fresh evidence of Crown’s misdeeds.