In the final years of his life, Dominique concentrated on issues of state corruption and criminal negligence by the private sector. He investigated Pharval Laboratories, a pharmaceutical company, for selling cough syrup contaminated with diethylene glycol that was responsible for the poisoning of two hundred children, of whom sixty died. He also denounced the importation of medical-grade ethanol that was being sold as counterfeit "clairin" (high-proof undistilled sugar cane spirits), sickening and killing people who consumed it while undercutting the livelihood of Haiti's sugar planters and distillers.