Basically, Team America World Police.
Stability operations have become an inescapable reality of U.S. foreign policy
An SPF is a high-end police force that engages in a range of tasks such as crowd and riot control, special weapons and tactics (SWAT), and investigations of organized criminal groups.
They must continually occupy and police other countries (or our own), lest they get 'rusty'.
Additionally, police skills are created and maintained only by constant use, and only police forces that work daily with civilians can exercise the maximum number of SPF policing functions among the civilian population.
Sounds almost 'secret police-y'
What are high-end police? High-end police fill a critical gap between military forces and civilian police. They are trained to deal with higher
levels of crime and violence than regular civilian police, and are able to perform such tasks as high-end criminality identification, criminal
investigation, special weapons and tactics (SWAT), crowd and riot control, and intelligence collection and analysis.
These patrols differ from those of the “beat cop” and those of an infantry unit. This mission takes place in an inhospitable location, in which citizens likely distrust the police, and often the only police force able to counter organized criminal groups embedded in the emerging power structures.
What should this force do?
Countries on the verge of war, suffering war, or emerging from war face a variety of threats from extremist and criminal organizations. Most usually face a condition of emerging anarchy. There is often little effective government, and the government that does exist frequently does not have a “monopoly of the legitimate use of physical force” within the country.
And when there aren't currently enough world conflicts to keep them occupied?
Mission When Not Deployed:
Embedding personnel in police departments and sheriffs’ offices would meet a significant national need. Many U.S. law enforcement agencies, both large and small, currently face significant challenges in recruiting and retaining personnel. Any assistance from the federal government to lessen critical staffing shortages would likely be warmly received by most law enforcement managers throughout the country