Derryn Hinch will chair a new parliamentary committee to investigate the federal government's response to the royal commission into child sex abuse.
The Victorian senator finally succeeded in establishing the joint select committee on Monday, following a failed attempt last week when he was blocked by One Nation senator Brian Burston.
The committee will inquire into the federal government's response to the recommendations of the royal commission, including the operation of the commonwealth redress scheme and the support of survivors, reporting back in November 2018.
It will consist of members from both the lower and upper houses.
Senator Hinch broke down in the Senate last week after One Nation stopped a vote on his proposed committee.
He accused Senator Burston of defamation, claiming he had told others in the upper house that he was "greedy" and only seeking to chair the committee because it paid $21,000.
Senator Hinch told the chamber he was completely unaware about the pay associated with the role, and vowed to donate it to a homelessness charity.
He took to social media accusing One Nation of "protecting pedophiles".
Senator Burston insists the committee is premature given the royal commission is yet to hand down its findings.
"I don't agree with setting up expensive committees just to pander to someone's vanity when they may not be necessary," he wrote on Facebook.
Another attempt by Senator Burston to stop the establishment of the committee failed on Monday.