A Suffolk County grand jury has handed up indictments against former state Treasurer Timothy P. Cahill on corruption charges after his campaign allegedly used $1.65 million in taxpayer-funded state lottery advertising to boost his floundering gubernatorial bid in 2010, a top state law enforcement official said today. Cahill was charged with directing the state Lottery to launch the media blitz that was designed to run up from mid-September though the November election. The indictment cites public corruption.