CLEVELAND (AP) -- Ohio is ready to do battle with the con artists expected to arrive with the opening of the state's first casinos next month.

The Ohio Casino Control Commission has assigned 13 state investigators full time to the Horseshoe Casino Cleveland, scheduled to open May 14, and similar contingents at casinos opening later in Toledo, Columbus and Cincinnati.

The Plain Dealer reports Sunday ( http://bit.ly/HNQwhi ) the agents have completed a 40-hour course that covers the rules for games as well as ruses that cheats are likely to try.

Matt Schuler, the commission's executive director, says the agents have sole jurisdiction on the gaming floor, though casino-hired security will handle routine matters.

Agents will keep guns concealed and usually dress in plain clothes, and display badges only to quell problems.

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Information from: The Plain Dealer, http://www.cleveland.com