Crime Fighting: The Impact of Science and Technology (Pros and Cons - Britannica Digital Learning)
Format: PDF / Kindle (mobi) / ePub
Age range: 10 - 14 Years
This innovative debate series looks at how scientific and technological advances in recent decades have dramatically altered the way we live—and examines both positive and negative impacts of these changes on the environment, society, health, and the economy. Intended to foster critical-thinking skills and to stimulate discussion and debate, each volume includes Pros and Cons sections that present the views of both advocates and critics of key innovations.
can be published in newspapers and on television, improving the chances of catching them. CONS: IDENTIKITS Identikits and similar techniques are only as good as the witness statements on which they are based. Witnesses often have confused recollections of what they have seen and heard, so the use of identikits may lead to incorrect identifications and miscarriages of justice. Identikits The first identikit was the brainchild of a Los Angeles police officer named Hugh C. McDonald.
their cheeks. Back in the laboratory, technicians use chemicals to dissolve the cell walls and isolate the DNA. They cut it into segments and, if necessary, use a special technique to increase the amount. Then they pass an electric current through the DNA, which drives it through a tube and sorts it into bands. Fixed on to a nylon sheet, the DNA now resembles a barcode and can be compared with similarly coded samples. Different processing methods can record the DNA as number sets that are
suspect. Success is even more likely if a helicopter joins the pursuit. The helicopter pilot can keep police drivers informed of the suspect’s movements, even when he or she suddenly leaves the car and tries to flee on foot. However, the high costs of running and flying helicopters often limits their use in most cases. Thermal Imaging Creatures and objects give off infrared radiation, which is beyond the range of light that the human eye can see. The amount of the radiation varies with the
when they should not be, they will be rearrested and sent to prison. Electronic Monitoring British Crown Court Judge David Mellor summarized the advantages of electronic monitoring in 2005: “The sort of offender one has in mind is the tax-paying citizen who has behaved in a way that would normally be met with a short term of imprisonment. Instead of taking someone out of the community, so that he loses his job and the taxpayer has to support his family, and indeed support him in prison, it
monitors activities in a public space. Surveillance enables police and security services to keep a close watch on people’s movements. PROS: INCREASED SURVEILLANCE Increased surveillance makes it easier to prevent or monitor illegal activities. Surveillance can make all the difference in combating terrorism. CONS: INCREASED SURVEILLANCE While the recent rise in terrorism justifies governments increasing their surveillance, security has to be balanced against citizens’ rights to