Firebrand Liberal Senator Cory Bernardi has set his anti-halal sights on the Australian Institute of Sport.

The controversial backbencher, who is a leading critic of the Islamic certification of food and set up a contentious Senate inquiry into the issue, has demanded answers from the AIS about its halal policies in its dining hall.

Cory Bernardi has demanded answers from the AIS on its dining hall meats. Credit:Alex Ellinghausen

In a series of "questions on notice" that have just been made public, the South Australian politician called on the AIS to explain an information manual that says all its dining hall meats are halal certified.

The manual has stoked online controversy among halal opponents. A "Boycott Halal in Australia" Facebook page that has more than 80,000 likes calls the AIS policy "outrageous". Earlier this year readers of Senator Bernardi's blog urged him to get to the bottom of it.