License for Diamond Jacks Casino Might Move to Slidell The plan to move the Diamond Jacks Casino license from Bossier City to south Louisiana is moving forward. There is a proposal to move the local license to the Slidell area. Citizens of St. Tammany Parish would first have to vote to have the gambling complex built on Lake Ponchatrain in the Slidell area. The State Gaming Control Board would also have to ok moving the license. The Senate Judiciary Committee passed a bill to let the process move forward for a gambling establishment in southeast Louisiana. The vote to move out of committee was 4-3. The bill is now headed to the Senate floor.