(MCT) — When authorities swarmed a central Illinois warehouse last fall, they found more than 1,000 video gambling machines they declared illegal, proclaiming the discovery one of the largest such busts in state history.

Four months later, state gambling regulators are still closely watching for an arrest. They view it as a test case on whether the state can make good on key promises to eradicate the underworld business while embarking on a controversial expansion of legalized video gambling.