Law enforcement officer
A law enforcement officer was an individual who was employed by a law enforcement agency for the purpose of enforcing the law, apprehending criminals, and keeping the peace in a civilian population. 

After the Great Link changed Odo from a Changeling to a Human in 2372, he explained to Captain Benjamin Sisko that all that remained of his sense of being was his job, adding "Besides, I'm still the best law enforcement officer on this station." Sisko wholeheartedly agreed, responding that he was not only "the best law enforcement officer in this sector. Maybe the whole damn quadrant." ()

After B'Elanna Torres was convicted of thinking violent thoughts on the Mari homeworld in 2374, Lieutenant Commander Tuvok attempted to continue the investigation into the matter, questioning the planet's Chief Investigator Nimira, whether or not all the evidence had been investigated. Nimira took offense to Tuvok's implications and explained that in regards to his followup investigation, she, "as a fellow law enforcement officer, [..] should understand." ()

Law enforcement occupations 

 Customs inspector
 Government agent
 Guard
 Highway patrolman
 Investigator
 
 Negotiator
 Parking enforcement officer
 Parole officer
 Police officer
 Security agent
 Security officer
 Sheriff
 Sniper
 Town marshal
 Truant officer
 US Marshal
 Warden

Law enforcement officer titles 

 Chief city administrator
 Chief investigator
 Commissioner
 Constable
 Deputy
 Desk lieutenant
 Detective
 High Sheriff of Nottingham
 Inspector
 Sergeant/Desk sergeant

List of police personnel 
Named
 Alexana Devos, Head of Rutian police
 Fuchida, Lieutenant, New Sydney Police
 Ty Kajada, Security officer, Kobliad Security 
 Krag, Chief inspector, Tanugan security force
 Kurn, Security officer, Bajoran Militia
 Naroq, Deputy Investigator, Kesat Security
 Nimira, Chief Examiner, Mari Constabulary
 Odo, Constable/Chief of Security, Bajoran Militia
 Seelee, (Security) officer, Bajoran Militia
 Stel, Chief investigator, Security Directorate
 Thrax, Security chief, Cardassian military

Unnamed
 Rakhari security officers
 Starfleet security personnel
 United States law enforcement personnel
 San Francisco Police Department personnel

Fictional
 Javert, Inspector, French policeman
 Lestrade, Inspector, Old Britain

External link 
 

Legal occupations