Police Sketch Technology and Psychology

The video explores the challenges of police sketch artists in accurately capturing a suspect's likeness from witness descriptions. It highlights the limitations of traditional sketches and the psychological difficulty of recalling individual facial features. New computer programs using genetic algorithms show promise by generating faces based on holistic recognition rather than individual features, leading to higher arrest rates. The video suggests that future advancements may make facial recognition more scientific and reliable.

What is the main challenge faced by police sketch artists?

• Identifying fingerprints

• Drawing landscapes

• Describing a face from memory

• Finding witnesses

What is the approximate success rate of police sketches in academic experiments?

• 60%

• 25%

• 8%

• 50%

What risk is associated with releasing an inaccurate police sketch?

• It can cause public panic

• It can lead to wrongful imprisonment

• It can damage police reputation

• It can increase crime rates

How do humans generally process faces, according to psychologists?

• Holistically

• Feature by feature

• By size

• By color

What was a major flaw in early attempts to improve police sketches?

• They were too expensive

• They were too slow

• They relied on feature-by-feature reconstruction

• They were not customizable

What is a key feature of the new computer program developed at the University of Winchester?

• It requires police training

• It uses genetic algorithms

• It uses mechanical kits

• It relies on witness drawings

What is the success rate of the new computer program in real police departments?

• 40% to 60%

• 25%

• 80%

• 10%

What does the new computer program ask witnesses to do?

• Choose faces that resemble the suspect

• Identify the suspect from a lineup

• Describe the suspect's features

• Draw the suspect

What is a potential benefit of the new sketch technology?

• It eliminates the need for witnesses

• It might make sketches more scientific

• It can be used by anyone

• It is cheaper than traditional methods

What percentage of violent crimes go unsolved in the US?

• 25%

• 50%

• 75%

• 10%