Note of Fighting Crime with Science

DNA databases
for

• quickly identify offenders
• make earlier arrests
• secure more convictions
• provide critical investigative leads for police investigations

against

• huge logistical
• bureaucratic issues
• civil liberty concerns
• people who are found innocent can not get their details removed

What is Biometrics?
It is a software of the biometric system which processes biometric data.
The stages are enrolment and capture, extraction, comparison and matching.
ex: biometric visas


CCTV(Closed-circuit television) is the use of to vedio cameras transmit a signal to a specific, limited set of monitors.

• often used for surveillance in areas
• effect is not on crime prevention, but on a small number of high media-profile case of detection

for

• money-saving
• provides recording for possibly many years
• a variety of quality and performance options and extra features
• criminals are more likely to plead guilty when faced by the undeniable evidence of being caught on camera
• tracking suspects by their distinctive clothes will help cut down on the manual scanning of hundreds of hours of video footage

against

• average citizen in the UK is caught on CCTV cameras 300 times a day.But analysis suggest CCTV's overall impact is less than impressive. Only 3% of crimes were solved by CCTV
• revealed that of 24 studies carried out in city centres, only 13 showed crime had fallen since CCTV cameras were installed.

now

• The technology is already used to automatically identify company logos in TV broadcasts of sporting events.
• used to identify company logos in TV broadcasts of sporting events, and calculate the time on screen and prominence of brand images

future

• how they should best be used
  
• how technology can be improved?
• change to DVR(digital video recorder) based technology or PVR (personal video recorder)