How to enforce a public service policy you don't believe in

The company in Moradabad, a city in the Indian state of Uttar Pradesh, about 150 kilometres east of New Delhi, describes itself as a “leading manufacturer of premium singing bowls,” which are used in sound therapy and religious practices. On IndiaMART, the country’s largest business-to-business marketplace, connecting manufacturers in India with customers around the world, a company with the same name and business ID appears to offer a very different set of products: chemical precursors used in the manufacture of fentanyl and other illegal narcotics. Listings promise delivery to...