"Evidence surfanced that these improper contacts became more numerous," says Assistant District Attorney General David Caldwell. "Then what was really going on is that this company was getting advantages that other companies didn't get and won this bid and they did so improperly."
Caldwell says Greenstein is accused of lying under oath about having contact with his former employer, CNSI, before a state Senate confirmation hearing and before the grand jury.
He says this is a very wide ranging corruption case that's still under investigation and it's possible more charges will be filed.
Caldwell says corruption needs to stop in Louisiana.
"Times are truly changing and if you're going to do business in Louisiana, you're going to get a fair shake," said Caldwell.
The Medicaid contract in question awarded to CNSI was worth about $200 million dollars and at the time Caldwell says it was the biggest government services contract in the history of Louisiana.
Greenstein's attorney John McLindon says his client has never denied being friends with his former co-workers at CNSI.
"And he did talk to them, but talking to a friend about football is not illegal," said McLindon.
McLindon says the contract was awarded by a series of evaluation teams and Greenstein didn't even know who those people were.
"He doesn't even know where the team was housed, he doesn't know their names," said McLindon. "Those are the people who awarded the contract. Bruce had nothing to do with awarding the contract to CNSI."