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Crime detection and prevention

agent provocateur

noun

someone who encourages people to do something illegal so that they can be arrested

all-points bulletin

noun

an APB

Amber alert

noun

a system used by police to ask the public for information that might help them quickly find a child who has been kidnapped

APB

noun

all-points bulletin: an urgent message to all police officers in a particular area about a criminal they need to arrest

beat

noun

an area that a police officer has responsibility for and must walk around regularly

check

noun

an examination by the police, army, etc. of an area, or people or vehicles passing through an area, in order to be certain that there is no danger or illegal activity

checkpoint

noun

a place where traffic can be stopped by soldiers or police

clampdown

noun

a determined attempt by someone in authority to stop people from doing something bad or illegal

clean up

to stop bad, unfair, or criminal behavior in a place or activity

clue

noun

an object or fact that someone discovers that helps them solve a crime or mystery

composite

noun

a picture of someone’s face that the police make using descriptions given by people who saw the person

criminology

noun

the scientific study of crime and criminals

detail

noun

a particular job given to a group of soldiers or police officers

detection

noun

the work of trying to discover information about a crime so that the criminal can be caught

DNA fingerprinting

noun

the scientific examination of someone’s DNA to find out whether they are someone’s father, whether they have committed a crime, etc.

dragnet

noun

a very thorough search by the police

E-FIT

a picture of the face of someone who police think committed a crime, created using software and someone’s description of the person

electronic monitoring

noun

a system that allows the police to know where a person is all the time, using electronic equipment that the person wears on their body

entrapment

noun

a process in which the police or other officials trick someone into committing a crime

evidence

noun

facts, statements, or objects that help to prove whether or not someone has committed a crime

fingerprint

noun

a mark that you leave on something when you touch it, showing the pattern of lines on the skin of your fingers

forensic

adjective

relating to the use of scientific methods to solve crimes and to find out who committed them

forensics

noun

scientific methods used to solve crimes and find out who committed them

forensics

noun

facts that can be used as forensic evidence

frisk

verb

to search someone with your hands in order to see if they are carrying anything illegal such as a gun or drugs

genetic profiling

noun

the scientific examination of DNA from body cells, especially in order to find out who committed a crime

identikit

an image of a person, especially a victim or suspected criminal, based on descriptions by witnesses and created by putting together different features selected from a set

law enforcement

noun

the job of making sure that people obey the law

lead

noun

a piece of information that may help someone to solve a problem or to find out the truth about something, especially a crime

manhunt

noun

a search organized to catch someone who is believed to have committed a crime, or a prisoner who has escaped

mug shot

noun

a photograph of someone’s face, taken by the police for their records

Neighborhood Watch

noun

a system that attempts to reduce crime by encouraging people who live in the same area to watch their neighbors’ houses and tell the police if they see anything unusual

operation

noun

a planned activity involving a lot of people, especially soldiers or police officers

pat down

to touch someone’s clothes in order to check whether they are carrying something such as a weapon or illegal drugs, for example at an airport

patrol

verb

to move regularly around a place in order to prevent trouble or crime

patrol

noun

a group of people or vehicles that move around a place in order to prevent trouble or crime

patrol

noun

the movement of a patrol around a place

police

verb

to use police officers to control an area or event

policing

noun

the control of an area or a problem by the police

polygraph

noun

a lie detector

print

noun

a fingerprint

roadblock

noun

a part of a road, street, or highway where police or soldiers stop traffic, especially to make checks

rogues’ gallery

noun

a set of photographs of criminals kept by the police

speed trap

noun

a place on a road where the police secretly measure how fast people are driving

stakeout

noun

an act of waiting outside a building and watching it, especially secretly in order to catch a criminal or find out whether there is any illegal activity there

sting

noun

a trick prepared by the police to catch criminals

strip-search

verb

to check whether someone is hiding drugs or other illegal articles by making them take off their clothes

surveillance

noun

the process of carefully watching a person or place that may be involved in a criminal activity

swoop

noun

a sudden and unexpected attack on a place, especially by police

tag

verb

to put an electronic tag on someone in order to watch where they go

tail

noun

someone who is sent to secretly follow someone else, especially a criminal

undercover

adjective

working or done secretly in order to catch criminals, get secret information, etc.

watchdog

noun

a person or organization that works to stop people from doing illegal things in a particular area of business or society

criminologist

noun

strip search

noun

undercover

adverb

be onto someone

to have found out that a particular person was involved in a crime

the long arm of the law

the power of the police and legal system, used for saying that they will usually catch people who commit a crime

under observation

being watched carefully by doctors or police officers

pre-cation

a paid holiday given to a new employee before they start their job

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selfie stick

an expandable stick which you attach to a mobile phone or camera to help you take a selfie …

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