Catalog 2021-2022

Criminal Justice Technology

Nature of the Work

Police officers protect lives and property. Law enforcement officers' 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. Most police officers patrol their jurisdictions and investigate any suspicious activity they notice. They also respond to calls from individuals. Detectives perform investigative duties such as gathering facts and collecting evidence. The daily activities of police and detectives vary with their occupational specialty and whether they work for a local, state, or federal agency. 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.

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 (SWAT); or emergency response teams. A few local and special law enforcement officers primarily perform jail-related duties or work in courts.

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.

Federal law enforcement encompasses many 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 employs numerous law enforcement officers within several different agencies, including Customs and Border Protection, Immigration and Customs Enforcement, and the U.S. Secret Service.