THREE years ago Labor backbencher Luke Donnellan voted for a four-year ban on genetically modified crops in Victoria. Last week Mr Donnellan invited his Labor colleagues to attend a pro-GM meeting at Parliament House sponsored by the Institute of Public Affairs, an outfit not highly regarded in Labor circles. With the State Government’s ban on genetically modified canola expiring in February, supporters and opponents are beginning their lobbying campaigns. The outcome will depend on whether Labor has shifted ground on the controversial technology.