Giving evidence in Court

Forensic investigators need to be able to think clearly and remember many important details about cases they are working on.  They are oftern required to give evidence long after working on a case, and can let guilty criminals go free if they can't remember everything clearly. 
Try the activities on the following links to practice your observational skills:
http://forensics.rice.edu/html/picture_begin.html
http://viscog.beckman.illinois.edu/grafs/demos/15.html
http://forensics.rice.edu/html/comparison.html

Once you've completed these, answer the following questions in your books:

1. Why is it important for forensic investigators to remember small details accurately?
2. Why do you think that about 42% of people don't see the gorilla first time?
3. Why might lawyers try and prove that forensic scientists have bad memories?
4. Give one reason from TODAY's lesson why photographing crime scenes is important
5. Explain what the chain of custody is and how it would help forensic investigators convince a jury in court that they have acted correctly around evidence (use the link - http://www.strathclydeforensics.co.uk/custody.htm)

Once youre finished try this - http://www.trutv.com/shows/forensic_files/games/hiddenmine/index.html