Many governments have contracted preshipment inspection (PSI) services to address problems associated with the over- and under-invoicing of trade transactions, tariff misclassifications, shortfalls in revenue collections from trade taxes, and the management of funds for balance of payments support. The emphasis in recent years has fallen on revenue-related issues. This study analyzes PSI services from the perspective of user governments. It concludes that many governments have failed to take full advantage of the service and discusses how greater benefits can be gained. The author finds that PSI provides a temporary solution to problems that require attention at their source.