Police ranks of the United States
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Although the large and varied number of federal, state, and local police and sheriff's departments have different ranks, a general model, from highest to lowest rank, would be:
- Chief of police/police commissioner/superintendent/sheriff: The title police commissioner is used mainly by large metropolitan departments, while chief of police is associated with small and medium-sized municipalities; both are typically appointed by a mayor or selected by the city council or commission. In some cities, "commissioner" is the member of the board of officials in charge of the department, while a "chief" is the top uniformed officer answering to the commissioner or commission. In very large departments, such as the New York City Police Department, there may be several deputy and assistant commissioners, all civilian, some of whom outrank the chief of department and others on par with the uniformed chief. There may be a chief of operations who is second in command to the top-ranking chief. In contrast, sheriffs in the United States are usually elected officials, one in each county, who head the sheriff's department (or sheriff's office).
- Assistant Chief/Assistant Commissioner/Assistant Superintendent/Assistant Sheriff: Only seen in some departments. In New York City, assistant chiefs head borough commands.
- Deputy Chief/Deputy Commissioner/Deputy Superintendent/Chief Deputy/undersheriff: The top lieutenant to the chief of police, commissioner, superintendent, or sheriff; may or may not have a specific area of responsibility. In some places the undersheriff is the warden of the county jail. The New York City Sheriff's Office has five undersheriffs: each one is responsible for a borough of New York City, with the Sheriff of the City of New York overseeing all of them.
- Inspector/commander: Sometimes have an insignia of a single star, analogous to brigadier generals, but in other areas wear a gold or silver eagle, similar to a colonel. "Inspector" is also used as a term for "detective" in the San Francisco Police Department but is two ranks above captain in New York and in the Philadelphia Police Department. In New York, inspectors command divisions, which may be groups of precincts within a borough or specialized branches of the police service.
- Colonel: A majority of state police agencies use "colonel" as their senior executive rank, often jointly with a civilian title such as "superintendent," "commissioner" or "director." Conversely, the colonel rank is rarely employed by other agencies, though it is used by the Baltimore Police Department and other Maryland agencies as either an executive or commander-like rank. Colonels generally wear the gold or silver eagle of a colonel, or the oak leaf of a lieutenant colonel, from the U.S. armed forces.
- Major/deputy inspector: Sometimes have an insignia of a gold or silver oak leaf, similar to a major or lieutenant colonel. In the Baltimore Police Department and Atlanta Police Department majors supervise police stations.
- Captain: Two gold or silver bars ("Railroad tracks"). Often supervises a police station but can supervise another division or unit (detectives, patrol, etc.) in smaller departments and only certain sections of a police station in larger departments. In NYC captains are the normal commanders of precincts.
- Lieutenant: A single gold or silver bar, who supervises two to three or more sergeants. Lieutenants can supervise an entire watch shift of a police station or detective squad (Narcotics, Homicide, etc.) in larger police departments and entire precincts in smaller police departments.
- Sergeant: Three inverted chevrons, a police officer who supervises an entire watch shift in smaller departments and areas of a precinct and individual detective squads in larger departments.
- Detective/Inspector/Investigator: An investigatory specialist, usually working in plain clothes. This may be in several classes that correspond to higher supervisory and pay grades. In NYC, technically a designation: detectives do not actually outrank police officers although they are in charge of cases and are often senior in years of service and so have a certain degree of authority beyond police officers in specific situations.
- Officer/Deputy/Corporal: A regular officer/deputy wears no rank insignia, and there may be several pay grades. Corporals, who may be senior officers or acting watch commanders, wear two inverted chevrons.
In many departments, officers from the rank Lieutenant, and up wear a white shirt instead of the dark blue or black uniform shirt common to lower-ranked police officers. Senior police officers may wear fretting ("scrambled eggs") on their visors.
Advancement from Officer to Captain is generally by appointment after successful completion of a series of examinations, and after the officer has sufficient time in grade. Grades above Captain are generally by appointment of the chief/sheriff. In addition, there must be vacancies for a higher rank.
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Rhode Island
- South Carolina
- South Dakota
- West Virginia
- Anne Arundel County Police, Maryland
- Baltimore County Police, Maryland
- East Baton Rouge Parish Sheriff, Louisiana
- Los Angeles County Sheriff, California
- Miami-Dade Police, Florida
- Nassau County Police Department, New York
- St. Louis County Police, Missouri
- Shelby County Sheriff, Tennessee
- Suffolk County Police, New York
- Suffolk County Sheriff, New York
- Sullivan County Sheriff, Tennessee