How do you follow consumer products from their origin in mining towns, farms, and fishing grounds on the other side of the world to supermarket shelves and clothing stores? You investigative supply chains – the networks between companies and their suppliers. They may include providers of raw material, firms that convert the material into products, storage facilities and distribution centers, and retailers who bring the ultimate product to consumers. The products are as varied as the marketplace: clothing, electronics, vehicles, food, medicine. Investigations have revealed forced labor, environmental crimes, corruption, and human rights abuses. Yet uncovering the connections can pose significant challenges. Come hear from three experts who know how to follow the trail.