Most businesses have employees assigned to full or part time duty maintaining scanner price databases, managing price changes, hanging sale and shelf tags, and verifying systems. The City of Appleton City Sealer Eric Maggio and Weights and Measures Inspectors regularly conduct price verification inspections at local stores. These inspections are always performed unannounced. During normal inspections, a sample of items is tested by using a hand-held bar code reader that produces duplicate bar codes to be scanned at the checkouts, and the shelf or advertised prices compared with the scanned prices. In the case of a complaint, items are actually purchased undercover. Enforcement actions against stores that violate price accuracy laws include written warnings, administrative civil penalties, and criminal or civil prosecution. In recent years, high-profile statewide actions have resulted in large monetary judgments against several grocery, drug and department store corporations.