Sri Lanka’s pesticide regulations have contributed to one of the greatest fallen in suicide rates ever seen in the world. Sri Lanka has reduced its suicide rate by 70% (or 93,000 lives) through a series of regulation of pesticides since 1995 (Knipe et al. The Lancet Global Health). Having peaked at 57 per 100 000 population in the early 1990s, its incidence is now 17 per 100 000 each year and continuing to fall. However, removal of problematic pesticides from agriculture by regulation then results in other pesticides becoming popular in agriculture and for self-harm.