CID
abbreviation /ˌsiː aɪ ˈdiː/
/ˌsiː aɪ ˈdiː/
- Criminal Investigation Department(the department of the British police force that is responsible for solving crimes)
（英国警察）刑事调查部 Culture law enforcementlaw enforcementBritain has regional police forces, which are responsible for maintaining law and order in their own area. London has two police forces, the Metropolitan Police, often referred to as the Met, which covers Greater London and has its headquarters at New Scotland Yard, and the smaller City of London Police.Each regional police force is led by a chief constable. In England and Wales since 2012 there have been directly elected Police and Crime Commissioners who direct the work of the chief constable and his or her force. Police officers wear dark blue uniforms, and constables and sergeants in some forces sometimes wear tall hard helmets (= hard hats that protect the head). Some members of the public are trained as special constables and are available to help the police in an emergency.Each police force has a Criminal Investigation Department (CID) of detectives. CID officers are chosen from the uniformed police. They do not wear uniforms and have the title Detective before their rank, for example Detective Sergeant Jones. Individual police forces have other special units for areas such as traffic, child protection, etc. The Metropolitan Police has Counter Terrorism Command which works to prevent terrorism and some other police forces have a Special Branch to do the same job. The National Crime Agency was set up to fight organised crime at a national and international level.Police officers in Britain generally carry only batons (= long clubs) as weapons, although they may also have a Taser or a special kind of spray to defend themselves with. Only certain officers, who have had special training, carry a gun. Police forces are trying to build better relationships with local communities, a practice called community policing. More police now patrol on foot, instead of in police cars, so that they have more contact with people.In the US, law enforcement is carried out by different organizations at the various levels of government. There are many thousands of law enforcement agencies. At national level, the FBI (Federal Bureau of Investigation) employs special agents, who investigate crimes across the US. At state level, state police departments are responsible for highway patrols and their officers are called state troopers. Each county within a state has an elected sheriff and the people who work in the sheriff's office, deputies, are responsible for investigating crimes. Cities have their own police departments. They may be very large in cities like New York, but those in small towns have only a few officers. Most colleges and universities have their own small police forces.The members of the US police force who have most contact with the public are uniformed officers, who patrol usually in cars or sometimes on foot and are the first to arrive when a crime is reported. More serious crimes are investigated by detectives, who usually wear plain clothes (= normal clothes) instead of a uniform. Police officers in the US usually carry a gun.Topics Law and justicec2