Queensland Opposition Leader, David Crisafulli, panned Labor’s promise of free student lunches as a $2 billion “burgers for schools” debt bomb but faced a grilling of his own over a lack of policy details, in the main leaders’ debate of the state election campaign.

Labor Premier Steven Miles and Mr Crisafulli traded barbs in a heated debate on Wednesday, where the Liberal-National Party leader’s position on abortion, energy and plans for the 2032 Olympics were examined, but few answers were offered to the large room of 600 punters.