First add the text to the list items on the drop-down.
Then go to the Binding tab, click Specify Item Values and add the penal codes.
In the exit event of the drop-down populate the penal code field with the raw value of the drop-down.
// form1.page1.offense::exit - (JavaScript, client)
form1.page1.penalCode.rawValue = form1.page1.offense.rawValue;
Steve