Police officers and detectives protect lives and property. Law enforcement officer's duties depend on the size and type of their organizations.
Police and detectives pursue and apprehend individuals who break the law and then issue citations or give warnings. A large proportion of their time is spent writing reports and maintaining records of incidents they encounter. Most police officers patrol their jurisdictions and investigate any suspicious activity they notice. They also respond to calls from individuals. Detectives, who often are called agents or special agents, perform investigative duties such as gathering facts and collecting evidence.
The daily activities of police and detectives vary with their occupational specialty ? such as police officer, game warden or detective ? and whether they are working for a local, state or federal agency. Duties also differ substantially among various federal agencies, which enforce different aspects of the law. Regardless of job duties or location, police officers and detectives at all levels must write reports and maintain meticulous records that will be needed if they testify in court.State and local law enforcement. uniformed police officers have general law enforcement duties. They maintain regular patrols and respond to calls for service. Much of their time is spent responding to calls and doing paperwork. They may direct traffic at the scene of an accident, investigate a burglary or give first aid to an accident victim. In large police departments, officers usually are assigned to a specific type of duty.
Many urban police agencies are involved in community policing-a practice in which an officer builds relationships with the citizens of local neighborhoods and mobilizes the public to help fight crime.
Police agencies are usually organized into geographic districts, with uniformed officers assigned to patrol a specific area. Officers in large agencies often patrol with a partner. They attempt to become familiar with their patrol area and remain alert for anything unusual. Suspicious circumstances and hazards to public safety are investigated or noted, and officers are dispatched to individual calls for assistance within their district. During their shift, they may identify, pursue and arrest suspected criminals; resolve problems within the community and enforce traffic laws.
Some agencies have special geographic jurisdictions and enforcement responsibilities. Public college and university police forces, public school district police and agencies serving transportation systems and facilities are examples. Most law enforcement workers in special agencies are uniformed officers.
Some police officers specialize in a particular field, such as chemical and microscopic analysis, training and firearms instruction or handwriting and fingerprint identification. Others work with special units, such as horseback, bicycle, motorcycle or harbor patrol; canine corps; special weapons and tactics
Sheriffs and deputy sheriffs enforce the law on the county level. Sheriffs usually are elected to their posts and perform duties similar to those of a local or county police chief. Sheriffs' departments tend to be relatively small, most having fewer than 50 sworn officers. Deputy sheriffs have law enforcement duties similar to those of officers in urban police departments. Police and sheriffs' deputies who provide security in city and county courts are sometimes called bailiffs.
State police officers, sometimes called state troopers or highway patrol officers, arrest criminals statewide and patrol highways to enforce motor vehicle laws and regulations. State police officers often issue traffic citations to motorists. At the scene of accidents, they may direct traffic, give first aid and call for emergency equipment. They also write reports used to determine the cause of the accident. State police officers frequently are called upon to render assistance to other law enforcement agencies, especially those in rural areas or small towns.
State highway patrols operate in every state except Hawaii. Most full-time sworn personnel are uniformed officers who regularly patrol and respond to calls for service. Others work as investigators, perform court-related duties or carry out administrative or other assignments.
Detectives are plainclothes investigators who gather facts and collect evidence for criminal cases. Some are assigned to interagency task forces to combat specific types of crime. They conduct interviews, examine records, observe the activities of suspects and participate in raids or arrests. Detectives usually specialize in investigating one type of violation, such as homicide or fraud. They are assigned cases on a rotating basis and work on them until an arrest and conviction is made or until the case is dropped.
Fish and game wardens enforce fishing, hunting and boating laws. They patrol hunting and fishing areas, conduct search and rescue operations, investigate complaints and accidents and aid in prosecuting court cases.Federal law enforcement. Federal Bureau of Investigation (FBI) agents are the government's principal investigators, responsible for investigating violations of more than 200 categories of federal law and conducting sensitive national security investigations. Agents may conduct surveillance, monitor court-authorized wiretaps, examine business records, investigate white-collar crime or participate in sensitive undercover assignments. The FBI investigates a wide range of criminal activity, including organized crime, public corruption, financial crime, bank robbery, kidnapping, terrorism, espionage, drug trafficking and cybercrime.
There are many other federal agencies that enforce particular types of laws. U.S. Drug Enforcement Administration (DEA) agents enforce laws and regulations relating to illegal drugs. U.S. marshals and deputy marshals provide security for the federal courts and ensure the effective operation of the judicial system. Bureau of Alcohol, Tobacco, Firearms and Explosives agents enforce and investigate violations of federal firearms and explosives laws, as well as federal alcohol and tobacco tax regulations. The U.S. Department of State Bureau of Diplomatic Security special agents are engaged in the battle against terrorism.
The Department of Homeland Security also employs numerous law enforcement officers within several different agencies, including Customs and Border Protection, Immigration and Customs Enforcement and the U.S. Secret Service. U.S. Border Patrol agents protect more than 8,000 miles of international land and water boundaries. Immigration inspectors interview and examine people seeking entry into the United States and its territories. Customs inspectors enforce laws governing imports and exports by inspecting cargo, baggage and articles worn or carried by people, vessels, vehicles, trains and aircraft entering or leaving the United States. Federal Air Marshals provide air security by guarding against attacks targeting U.S. aircraft, passengers, and crews. U.S. Secret Service special agents and U.S. Secret Service uniformed officers protect the president, the vice president, their immediate families and other public officials. Secret Service special agents also investigate counterfeiting, forgery of government checks or bonds and fraudulent use of credit cards.
Other federal agencies employ police and special agents with sworn arrest powers and the authority to carry firearms. These agencies include the Postal Service, the Bureau of Indian Affairs Office of Law Enforcement, the Forest Service and the National Park Service.