DETROIT US Customs and Border Protections Office of Field Operations seized more than a half ton of salmonella-laced Kratom at the Fort Street Cargo Facility. Further steps to positively identify the powder were coordinated by Agriculture and Import specialists through Food and Drug Administration lab tests. The shipment was ultimately seized due to significant risk to public health and safety. (CBP)Our Officers and Specialists are wholly committed to the health and safety of the American public, said Port Director Devin Chamberlain. Kratom is not a scheduled substance under the Controlled Substances Act, though the Drug Enforcement Administration currently lists it as a Drug or Chemical of Concern.