Law enforcement agency
A law enforcement agency was a department or agency whose focus was on law enforcement. They were a series of forces that served as a type of security group to ensure that laws were obeyed, and that order and peace was the norm on a planet, or in space under a planet's jurisdiction. 

Upon seeing Regana Tosh's poor-quality mugshot on a PADD being reviewed by Worf in 2373, Quark commented on that "I've never understood why law enforcement agencies don't keep better visual records. You'd think they'd be concerned about little things like making an accurate identification." ()

Units 
 Constabulary 
 Special Weapons and Tactics

Agencies 
Earth-based organizations
 Air Police
 Detroit Police Department
 Federal Bureau of Investigation
 Federation Security 
 Gestapo
 Immigration and Customs Enforcement
 KGB
 Los Angeles Police Department 
 New York City Police Department
 Portage Creek Police Department
 San Francisco Police Department

Non-Earth organizations

 Angosian security
 Bajoran civil police 
 Criminal Investigations
 Kesat Security 
 Kobliad Security
 Lurian Security
 New Sydney Police
 Rutian police
 Tanugan security force
 Telsian Security 
 Trabe police

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