International Narcotics Trafficking Emergency Response by Detecting Incoming Contraband with Technology Act or the INTERDICT Act This bill requires the Department of Homeland Security (DHS) to: (1) increase the number of chemical screening devices available to the U.S. Customs and Border Protection (CBP) to interdict fentanyl, other synthetic opioids, and other narcotics and psychoactive substances that are illegally imported into the United States, including such substances imported through the mail or by an express consignment operator or carrier; and (2) dedicate the appropriate number of personnel, including scientists, to the CBP to interpret data collected by such devices during all operational hours.