Grand jury involved in convention gift card probe

Police used grand jury subpoenas to obtain records in their investigation of Southwest Airline gift card misuse at the Las Vegas convention authority. Convention auditors uncovered that former CEO Rossi Ralenkotter used $17,000 in gift cards for personal travel. Former convention executive Brig Lawson used tax money to purchase the cards. Southwest Airlines initially couldn’t provide records to convention officials but airline executives had to respond to grand jury subpoenas.