Homeland Security Acquisitions: DHS Has Opportunities to Improve Its Component Acquisition Oversight, Report to Congressional Requesters [open pdf - 2MB]
From the GAO (Government Accountability Office) Highlights: "DHS invests billions of dollars each year in its major acquisition programs--such as systems to help secure the border, increase marine safety, and screen travelers--to help execute its many critical missions. In fiscal year 2020 alone, DHS planned to spend more than $10 billion on major acquisition programs, and ultimately the department plans to invest more than $200 billion over the life cycle of these programs. A critical aspect of DHS's acquisition process is oversight of this portfolio by the CAEs [Component Acquisition Executives]. Most CAEs are senior acquisition officials below the department level, within the components. The CAEs have oversight responsibilities over the components' major and non-major acquisition programs, among other duties."
Government Accountability Office: https://www.gao.gov/