"Zero tolerance" is the only way to approach the issue of human trafficking and slavery in supply chains. But how can companies make that happen? No global supply chain, with its multiple geographies, partners and supplier tiers, can ever be deemed 100-percent "risk-free." But thats no reason not to strive for that goal – especially when it comes to the elimination of slavery from supply chains. Companies must shift their emphasis from reactive to proactive, says Brian Alster, global head of supply and compliance with Dun & Bradstreet. Obstacles stand in the way, not the least of which are the conflicting priorities that businesses often are required to pursue. When it comes to wiping out slavery, he says, "they must go deeper, faster, and with less." Supplier codes of conduct aren't enough; companies need to adopt robust processes for implementing them. On this episode, Alster offers guidance on how to do it. Beyond the primary motivation of doing what's right, they need to be cognizant of the very real threat to brand reputation. Turns out that ensuring fair labor practices is just good business.