Which type of investigations must be deconflicted with the DEA according to HSI procedures?

The requirement to deconflict investigations with the Drug Enforcement Administration (DEA) specifically pertains to Title 21 investigations, which involve drug-related offenses. Title 21 of the United States Code is focused on the regulation of controlled substances, and because DEA is the federal agency primarily responsible for enforcing the controlled substances laws and regulations, any investigations regarding drug cases must be coordinated with them. This ensures that there is no overlap or interference between agencies' operations, which promotes operational efficiency and effectiveness in tackling drug-related crimes.

The need for deconfliction does not extend to money laundering cases, human trafficking cases, or immigration violations in the same way, because while those areas may intersect with drug-related activities, they are primarily under the jurisdiction of other law enforcement agencies. Thus, Title 21 investigations are the primary focus that necessitates coordination with the DEA.